Folders
Meet Folders: one free app for 382 kinds of files
Folders is a free, open-source file manager for Android, Windows and Linux that opens PDFs, Office files, 3D models, code, videos and archives itself, with no ads and no account.
Author
Satyam Mishra
Satyam makes Folders, a free, open-source file manager for Android, Windows and Linux, and writes this blog: 125 guides on opening every kind of file, moving files between devices and keeping storage tidy.
Posts by Satyam Mishra 125
A Windows file explorer with tabs, and the shortcuts that make it fast
Folders on Windows and Linux: tabs, multiple windows, drag and drop with File Explorer, a see-through window and the keyboard shortcuts you already know. Free and open source.
How to clean junk files on Android without deleting anything you need
Free up storage by clearing thumbnail caches, leftovers and other junk, with a cleaner that only ticks what's certainly safe to delete and shows you everything else first.
How to find and remove duplicate files safely
Duplicate photos, videos and downloads waste gigabytes. Find true copies by their contents, not their names, keep the oldest of each and delete the rest, on Android, Windows or Linux.
How to free RAM on Android 14 and newer, now that apps can't close other apps
Since Android 14, RAM cleaner apps can't close background apps any more. Here's why, when freeing memory actually helps, and how Folders' Extreme mode still does it, safely.
How to move files between your phone and PC over Wi-Fi, without a cable
Two free ways to send photos, videos and documents between Android and a computer on the same Wi-Fi: a browser link with a QR code, or Nearby share that works with LocalSend.
How to open .3DM files (Rhino 3D models) on Android, Windows and Linux
What a .3dm file is and how to open Rhino 3DM models for free on Android, Windows and Linux without Rhino, and how to get a copy any 3D viewer can show.
How to open .3DS files (3D Studio models) on Android, Windows and Linux
What a .3ds file is and how to open 3DS, LightWave LWO and Quake II MD2 models for free on Android, Windows and Linux, with textures, skins and animations.
How to open .3GP files (old mobile phone videos) on Android, Windows and Linux
What a .3gp file is and how to open 3GP and 3G2 videos from old phones and MMS messages for free on Android, Windows and Linux, plus fixes for missing sound.
How to open .AFDESIGN files (Affinity Designer) on Android, Windows and Linux
What AFDESIGN, AFPHOTO and AFPUB files are and how to open and preview Affinity Designer, Photo and Publisher files for free on Android, Windows and Linux.
How to open .AI files (Adobe Illustrator artwork) on Android, Windows and Linux
What an .ai file is and how to open and view Adobe Illustrator artwork for free on Android, Windows and Linux, with no Illustrator subscription needed.
How to open .AIFF files (Apple audio) on Android, Windows and Linux
What .aiff, .aif and .caf files are and how to open and play these Apple audio formats for free on Android, Windows and Linux, with no Apple software needed.
How to open .ARW files (Sony raw photos) on Android, Windows and Linux
What an .arw file is and how to open ARW, SRF and SR2 raw photos from Sony Alpha and Cyber-shot cameras for free on Android, Windows and Linux.
How to open .AVI files (Audio Video Interleave) on Android, Windows and Linux
What an .avi file is and how to open AVI and DivX videos for free on Android, Windows and Linux, plus what to do about missing codecs and broken indexes.
How to open .AVIF files (AV1 images) on Android, Windows and Linux
What an .avif file is, why AVIF images won't open in older software, and how to open AVIF and convert it to JPG or PNG for free on Android, Windows and Linux.
How to open .BLEND files (Blender projects) on Android, Windows and Linux
What a .blend file is and how to open Blender BLEND and BLEND1 files for free on Android, Windows and Linux to see the models, even without Blender installed.
How to open .BMP files (Windows bitmap images) on Android, Windows and Linux
What a .bmp file is and how to open BMP and WBMP bitmap images for free on Android, Windows and Linux, and how to shrink a big BMP by converting it to PNG.
How to open .BZ2 files (bzip2 and XZ archives) on Android, Windows and Linux
What .bz2, .tbz, .tbz2, .xz and .txz files are and how to open and extract bzip2 and XZ archives for free on Android, Windows and Linux, with no terminal.
How to open .C files (C and C++ source code) on Android, Windows and Linux
What .c, .h and .cpp files are and how to open, read and edit C, C++ and Objective-C source code for free on Android, Windows and Linux, with no IDE needed.
How to open .CBZ files (comic book archives) on Android, Windows and Linux
What .cbz, .cbr, .cb7 and .cbt files are and how to open and read CBZ, CBR, CB7 and CBT comics and manga for free on Android, Windows and Linux, page by page.
How to open .CDR files (CorelDRAW drawings) on Android, Windows and Linux
What CDR and XD files are and how to open and preview CorelDRAW drawings and Adobe XD designs for free on Android, Windows and Linux, plus free editors for CDR.
How to open .CR2 files (Canon raw photos) on Android, Windows and Linux
What .cr2, .cr3 and .crw files are and how to open Canon raw photos for free on Android, Windows and Linux, plus what to use to edit them or turn them into JPG.
How to open .CS files (C# source code) on Android, Windows and Linux
What .cs, .csproj, .sln, .vcxproj and .xaml files are and how to open and edit C# code and Visual Studio projects for free on Android, Windows and Linux.
How to open .CSS files (style sheets) on Android, Windows and Linux
What CSS, SCSS, Sass and Less files are and how to open, read and edit style sheets for free on Android, Windows and Linux, with colours, search and replace.
How to open .CSV files (comma-separated values) on Android, Windows and Linux
What a .csv file is and how to open, read and edit CSV files for free on Android, Windows and Linux, as a table with the right delimiter, no Excel needed.
How to open .DAE files (COLLADA 3D models) on Android, Windows and Linux
What a .dae file is and how to open COLLADA DAE models and Google Earth KMZ files for free on Android, Windows and Linux, with textures and animations.
How to open .DNG files (Digital Negative) on Android, Windows and Linux
What a .dng file is and how to open and view DNG raw photos from phones and cameras for free on Android, Windows and Linux, and what to use to edit them.
How to open .DOC files (Word 97–2003 documents) on Android, Windows and Linux
What .doc, .dot and .wps files are and how to open, read and convert old Word and Works documents for free on Android, Windows and Linux, saving them as DOCX.
How to open .DOCKERFILE files (Docker build files) on Android, Windows and Linux
What a Dockerfile is and how to open Dockerfiles, Makefiles (.mk, .mak), CMake, Terraform (.tf, .hcl) and .nix files for free on Android, Windows and Linux.
How to open .DOCX files (Word documents) on Android, Windows and Linux
What a .docx file is and how to open, read and edit Word DOCX documents for free on Android, Windows and Linux, without Microsoft Word or an account.
How to open .DOTM files (Word macro-enabled templates) on Android, Windows and Linux
What a .dotm file is and how to open, read and edit DOTM, DOTX and DOCM files for free on Android, Windows and Linux, with no Microsoft Word needed.
How to open .DWG files (AutoCAD drawings) on Android, Windows and Linux
What a .dwg file is and how to open and preview AutoCAD drawings for free on Android, Windows and Linux, check the DWG version, and find a free CAD viewer.
How to open .EPS files (Encapsulated PostScript) on Android, Windows and Linux
What EPS, EPSF, EPSI and PS files are and how to open and preview them for free on Android, Windows and Linux, plus the free tools that convert them to PDF.
How to open .EPUB files (e-books) on Android, Windows and Linux
What an .epub file is and how to open and read EPUB e-books for free on Android, Windows and Linux, with bookmarks, search, themes and your place remembered.
How to open .EXR files (OpenEXR HDR images) on Android, Windows and Linux
What .exr, .tga and .pvr files are and how to open OpenEXR renders, Targa images and PowerVR game textures for free on Android, Windows and Linux.
How to open .FB2 files (FictionBook e-books) on Android, Windows and Linux
What an .fb2 file is and how to open and read FB2 and FBZ FictionBook e-books for free on Android, Windows and Linux, with no conversion to EPUB needed.
How to open .FBX files (Autodesk FBX 3D models) on Android, Windows and Linux
What an .fbx file is and how to open and view FBX 3D models and animations for free on Android, Windows and Linux, without Maya, 3ds Max or a game engine.
How to open .FIG files (Figma designs) on Android, Windows and Linux
What a .fig file is, how to open and preview Figma designs for free on Android, Windows and Linux with no account, and what to do if it's a MATLAB figure.
How to open .FLAC files (lossless audio) on Android, Windows and Linux
What a .flac file is and how to open and play FLAC lossless audio for free on Android, Windows and Linux, plus why FLAC files are so big and how to shrink them.
How to open .FLV files (Flash Video) on Android, Windows and Linux
What .flv and .wmv files are and how to open Flash Video and Windows Media Video files for free on Android, Windows and Linux, now that Flash Player is gone.
How to open .GCODE files (3D printer toolpaths) on Android, Windows and Linux
What a .gcode file is and how to open G-code and AMF 3D printing files for free on Android, Windows and Linux, to check the print's shape before you start.
How to open .GIF files (animated GIFs) on Android, Windows and Linux
What a .gif file is, why GIFs from chat apps are often videos, and how to open, view and convert GIF images for free on Android, Windows and Linux.
How to open .GITIGNORE files (project dotfiles) on Android, Windows and Linux
What .gitignore, .htaccess, .npmrc, .lock and .patch files are, and how to open, read and edit these dotfiles for free on Android, Windows and Linux.
How to open .GLB files (glTF 3D models) on Android, Windows and Linux
What .glb, .gltf and .drc files are and how to open GLB, glTF and Draco 3D models for free on Android, Windows and Linux: spin, zoom and play animations.
How to open .GO files (Go source code) on Android, Windows and Linux
What .go, .rs, .zig, .nim, .v and .d files are and how to open, read and edit Go, Rust and other systems code for free on Android, Windows and Linux.
How to open .HTML files (web pages) on Android, Windows and Linux
What an .html file is and how to open HTML, HTM, XHTML and SHTML files free on Android, Windows and Linux, as a finished page or as source code you can edit.
How to open .ICO files (Windows icons) on Android, Windows and Linux
What .ico and .cur files are, how to open Windows icons and cursors for free on Android, Windows and Linux, and how to make an ICO icon from a PNG picture.
How to open .INDD files (Adobe InDesign documents) on Android, Windows and Linux
What INDD and INDT files are and how to open and preview Adobe InDesign documents for free on Android, Windows and Linux, plus what to ask a designer for.
How to open .INI files (settings files) on Android, Windows and Linux
What .ini, .cfg, .conf, .env, .properties, .desktop and .service files are and how to open and edit settings files for free on Android, Windows and Linux.
How to open .ISO files (disc images) on Android, Windows and Linux
What an .iso disc image is and how to open it for free on Android, Windows and Linux: look inside, open single files and copy them out, with no disc to burn.
How to open .JAR files (Java archives) on Android, Windows and Linux
What a .jar file is and how to open JAR, WAR and AAR archives for free on Android, Windows and Linux: look inside, read the manifest and extract the files.
How to open .JAVA files (Java source code) on Android, Windows and Linux
What .java, .kt, .kts, .gradle, .groovy and .scala files are and how to open, read and edit Java and Kotlin code for free on Android, Windows and Linux.
How to open .JPG files (JPEG photos) on Android, Windows and Linux
What a .jpg file is and how to open, view, edit and convert JPG, JPEG, JFIF and PJPEG photos for free on Android, Windows and Linux, even offline.
How to open .JS files (JavaScript) on Android, Windows and Linux
What JS, MJS, CJS, JSX, TS and TSX files are and how to open and edit JavaScript and TypeScript for free on Android, Windows and Linux, without running them.
How to open .JSON files (JSON data) on Android, Windows and Linux
What a .json file is and how to open, read, format and edit JSON, GeoJSON, JSONC, JSON5 and HAR files for free on Android, Windows and Linux, even large ones.
How to open .KML files (Google Earth placemarks) on Android, Windows and Linux
What .kml, .gpx, .opml, .rss and .atom files are and how to open, read and edit map data, GPS tracks and feed files for free on Android, Windows and Linux.
How to open .KRA files (Krita paintings) on Android, Windows and Linux
What KRA, ORA and Procreate files are and how to open and view Krita, OpenRaster and Procreate artwork for free on Android, Windows and Linux, without the app.
How to open .LOTTIE files (Lottie animations) on Android, Windows and Linux
What a .lottie file is and how to open and play Lottie animations and Rive (.riv) files for free on Android, Windows and Linux, with no After Effects needed.
How to open .M3U files (playlists) on Android, Windows and Linux
What an .m3u file is and how to open, read and edit M3U and M3U8 playlists, PLS, CUE sheets and .url shortcuts for free on Android, Windows and Linux.
How to open .M4A files (MPEG-4 audio) on Android, Windows and Linux
What .m4a, .aac and .m4b files are and how to open and play them for free on Android, Windows and Linux: voice memos, music from iTunes and audiobooks.
How to open .MKA files (Matroska audio) on Android, Windows and Linux
What .mka and .weba files are and how to open and play Matroska and WebM audio for free on Android, Windows and Linux, from film soundtracks to web recordings.
How to open .MOBI files (Kindle e-books) on Android, Windows and Linux
What .mobi, .azw, .azw3 and .prc files are and how to open and read DRM-free MOBI, AZW, AZW3 and PRC Kindle e-books for free on Android, Windows and Linux.
How to open .MOV files (QuickTime movies) on Android, Windows and Linux
What a .mov file is and how to open MOV and QT videos, including iPhone recordings, for free on Android, Windows and Linux, with fixes for a missing picture.
How to open .MP3 files (MP3 audio) on Android, Windows and Linux
What an .mp3 file is and how to open and play MP3 audio for free on Android, Windows and Linux, plus fixes for MP3s that won't play or show the wrong length.
How to open .MP4 files (MPEG-4 videos) on Android, Windows and Linux
What an .mp4 file is and how to open MP4 and M4V videos for free on Android, Windows and Linux, with subtitles, plus fixes for MP4s that won't play.
How to open .MPG files (MPEG-1 and MPEG-2 videos) on Android, Windows and Linux
What .mpg, .mpeg, .vob and .ogv files are and how to open MPEG, DVD and Ogg videos for free on Android, Windows and Linux, plus fixes for copied DVDs.
How to open .MTS files (AVCHD camcorder videos) on Android, Windows and Linux
What an .mts file is and how to open MTS and M2TS videos from AVCHD camcorders and Blu-ray folders for free on Android, Windows and Linux, plus split clips.
How to open .NEF files (Nikon raw photos) on Android, Windows and Linux
What a .nef file is and how to open NEF and NRW raw photos from Nikon cameras for free on Android, Windows and Linux, with their camera details.
How to open .ODP files (OpenDocument presentations) on Android, Windows and Linux
What an .odp file is and how to open ODP and OTP slides from LibreOffice Impress for free on Android, Windows and Linux: view, present and read speaker notes.
How to open .ODS files (OpenDocument spreadsheets) on Android, Windows and Linux
What an .ods file is and how to open, read and edit ODS and OTS spreadsheets from LibreOffice for free on Android, Windows and Linux, and save them as .xlsx.
How to open .ODT files (OpenDocument Text) on Android, Windows and Linux
What .odt, .ott and .fodt files are and how to open and read OpenDocument Text from LibreOffice for free on Android, Windows and Linux, and save a copy as DOCX.
How to open .OGG files (Ogg Vorbis audio) on Android, Windows and Linux
What .ogg, .oga and .opus files are and how to open and play them for free on Android, Windows and Linux, from WhatsApp voice notes to game sound effects.
How to open .PAGES files (Apple Pages documents) on Android, Windows and Linux
What Apple .pages and .numbers files are and how to open and preview them for free on Android, Windows and Linux, and how to get Word or Excel copies.
How to open .PDF files (Portable Document Format) on Android, Windows and Linux
What a .pdf file is and how to open, read, sign and organise PDF files for free on Android, Windows and Linux, including password-protected and scanned PDFs.
How to open .PEF files (Pentax raw photos) on Android, Windows and Linux
Open PEF, SRW, 3FR, IIQ, MOS, MEF, ERF, DCR, KDC, X3F, RWL and .raw photos for free on Android, Windows and Linux: what each raw format is and what reads it.
How to open .PEM files (certificates and keys) on Android, Windows and Linux
What a .pem file is and how to open PEM certificates and .crt, .csr, .key, .pub and .asc files for free on Android, Windows and Linux, while keeping keys safe.
How to open .PLY files (3D scans and point clouds) on Android, Windows and Linux
What a .ply file is and how to open PLY 3D scans, meshes and point clouds for free on Android, Windows and Linux, and why some PLY files show only dots.
How to open .PNG files (Portable Network Graphics) on Android, Windows and Linux
What a .png file is and how to open, view, edit and convert PNG and animated APNG images for free on Android, Windows and Linux, transparency included.
How to open .PNM files (Netpbm images) on Android, Windows and Linux
What .pnm, .ppm, .pgm, .pbm and .pam files are and how to open Netpbm images for free on Android, Windows and Linux, and convert PPM or PGM files to PNG.
How to open .PPT files (PowerPoint 97-2003) on Android, Windows and Linux
What a .ppt file is and how to open old PPT, PPS and POT PowerPoint slides for free on Android, Windows and Linux: view, present and read speaker notes.
How to open .PPTM files (macro-enabled PowerPoint) on Android, Windows and Linux
What .pptm, .ppsx, .ppsm and .potx files are and how to open PPTM, PPSX, PPSM and POTX PowerPoint files safely and for free on Android, Windows and Linux.
How to open .PPTX files (PowerPoint presentations) on Android, Windows and Linux
What a .pptx file is and how to open PPTX PowerPoint slides for free on Android, Windows and Linux: view, present full screen and read speaker notes, offline.
How to open .PS1 files (PowerShell scripts) on Android, Windows and Linux
What .ps1, .psm1, .bat, .cmd, .vbs and .reg files are, and how to open Windows scripts safely for free on Android, Windows and Linux without running them.
How to open .PSD files (Photoshop documents) on Android, Windows and Linux
What a .psd file is and how to open and view Photoshop PSD files for free on Android, Windows and Linux without Photoshop, and turn them into PNG or JPG copies.
How to open .PY files (Python scripts) on Android, Windows and Linux
What .py, .pyw, .pyi and .ipynb files are and how to open, read and edit Python scripts and Jupyter notebooks for free on Android, Windows and Linux.
How to open .R files (R scripts) on Android, Windows and Linux
What .r, .jl, .ex, .erl, .clj, .hs and .ml files are and how to open and edit R, Julia, Elixir, Haskell and more for free on Android, Windows and Linux.
How to open .RAF files (Fujifilm raw photos) on Android, Windows and Linux
What .raf, .orf and .rw2 files are and how to open Fujifilm, Olympus or OM System and Panasonic Lumix raw photos for free on Android, Windows and Linux.
How to open .RB files (Ruby scripts) on Android, Windows and Linux
What .rb, .pl, .pm, .lua, .tcl and .coffee files are and how to open, read and edit Ruby, Perl and Lua scripts for free on Android, Windows and Linux.
How to open .RST files (reStructuredText) on Android, Windows and Linux
What an .rst file is and how to open and edit reStructuredText, AsciiDoc (.adoc, .asciidoc) and Org mode (.org) files for free on Android, Windows and Linux.
How to open .RTF files (Rich Text Format) on Android, Windows and Linux
What an .rtf file is and how to open, read and edit Rich Text Format documents for free on Android, Windows and Linux, and save a copy as DOCX when you need to.
How to open .SH files (shell scripts) on Android, Windows and Linux
What .sh, .bash, .zsh, .fish and .awk files are, and how to open, read and edit shell scripts for free on Android, Windows and Linux without running them.
How to open .SKETCH files (Sketch designs) on Android, Windows and Linux
What a .sketch file is and how to open and preview Sketch designs for free on Android, Windows and Linux, see their pages and artboards, and get the images out.
How to open .SQL files (database scripts) on Android, Windows and Linux
What a .sql file is and how to open and read SQL scripts and database dumps, plus GraphQL (.graphql, .gql) and .proto files, free on Android, Windows and Linux.
How to open .SRT files (subtitles) on Android, Windows and Linux
What an .srt file is and how to open, read, fix and play SRT, VTT, ASS, SSA, SUB and LRC subtitle files for free on Android, Windows and Linux, with your video.
How to open .SVG files (vector graphics) on Android, Windows and Linux
What .svg and .svgz files are and how to open SVG vector graphics for free on Android, Windows and Linux, sharp when zoomed, and how to turn SVG into PNG.
How to open .SWIFT files (Swift source code) on Android, Windows and Linux
What .swift, .dart and .arb files are and how to open, read and edit Swift, Dart and Flutter translation files for free on Android, Windows and Linux.
How to open .TAR files (tar and tar.gz archives) on Android, Windows and Linux
What .tar, .gz and .tgz files are and how to open and extract TAR and tar.gz archives for free on Android, Windows and Linux, with no command line needed.
How to open .TEX files (LaTeX documents) on Android, Windows and Linux
What a .tex file is and how to open and edit LaTeX source plus .bib, .sty and .cls files for free on Android, Windows and Linux, and how to turn it into a PDF.
How to open .TIF files (TIFF images) on Android, Windows and Linux
What a .tif or .tiff file is and how to open TIFF scans, faxes and photos for free on Android, Windows and Linux, and how to convert them to JPG or PNG.
How to open .TSV files (tab-separated values) on Android, Windows and Linux
What .tsv, .tab and .psv files are and how to open, read and edit TSV, TAB and PSV data files for free on Android, Windows and Linux, as a clear table.
How to open .TTF files (TrueType fonts) on Android, Windows and Linux
What a .ttf file is and how to open, preview and check TrueType and OpenType (.otf) fonts for free on Android, Windows and Linux, with their licence details.
How to open .TXT files (plain text) on Android, Windows and Linux
What a .txt file is and how to open, read and edit TXT, LOG, NFO, DIZ, README and other plain text files for free on Android, Windows and Linux, even huge logs.
How to open .USDZ files (USD 3D and AR models) on Android, Windows and Linux
What a .usdz file is and how to open USDZ, USDA and USDC 3D models for free on Android, Windows and Linux, and what to do with AR models made for the iPhone.
How to open .VCF files (vCard contacts) on Android, Windows and Linux
What a .vcf file is and how to open vCard contacts, .ics calendar invites and .eml emails for free on Android, Windows and Linux, and how to import them.
How to open .VOX files (MagicaVoxel models) on Android, Windows and Linux
What a .vox file is and how to open MagicaVoxel VOX voxel art for free on Android, Windows and Linux: turn it around, check its size and save a screenshot.
How to open .VUE files (Vue components) on Android, Windows and Linux
What VUE, SVELTE, ASTRO and PHP files are and how to open, read and edit them for free on Android, Windows and Linux, plus what to do with a download.php file.
How to open .WAV files (Waveform audio) on Android, Windows and Linux
What a .wav file is and how to open and play WAV audio from recorders, sample packs and voicemail for free on Android, Windows and Linux, with fixes.
How to open .WEBM files (WebM videos) on Android, Windows and Linux
What a .webm file is and how to open WebM videos from browsers, screen recorders and websites for free on Android, Windows and Linux, plus common fixes.
How to open .WEBP files (WebP images) on Android, Windows and Linux
What a .webp file is, why images saved from websites end in .webp, and how to open WebP and convert it to JPG or PNG for free on Android, Windows and Linux.
How to open .WMA files (Windows Media Audio) on Android, Windows and Linux
What .wma and .amr files are and how to open and play old Windows Media Audio music and phone voice recordings for free on Android, Windows and Linux.
How to open .WRL files (VRML 3D worlds) on Android, Windows and Linux
What a .wrl file is and how to open VRML 2.0 (VRML97) WRL and VRML models for free on Android, Windows and Linux, plus what to do with old VRML 1.0 files.
How to open .XAPK files (Android app packages) on Android, Windows and Linux
What .xapk and .apks files are, how to open them for free on Android, Windows and Linux to see the APKs inside, and how to install a split app package safely.
How to open .XLS files (Excel 97-2003 workbooks) on Android, Windows and Linux
What an .xls file is and how to open, read and edit old XLS and XLT Excel workbooks for free on Android, Windows and Linux, with no Microsoft Excel needed.
How to open .XLSM files (Excel macro-enabled workbooks) on Android, Windows and Linux
What .xlsm, .xltx and .xltm files are and how to open, view and edit Excel macro-enabled workbooks and templates for free on Android, Windows and Linux.
How to open .XLSX files (Excel workbooks) on Android, Windows and Linux
What an .xlsx file is and how to open, view and edit Excel XLSX spreadsheets for free on Android, Windows and Linux, without Microsoft Excel or an account.
How to open .XML files (Extensible Markup Language) on Android, Windows and Linux
What .xml, .xsd, .xsl, .xslt and .plist files are and how to open, read and edit XML data, schemas and property lists for free on Android, Windows and Linux.
How to open .XYZ files (point clouds) on Android, Windows and Linux
What .xyz, .pcd, .off, .vtk and .vtp files are and how to open these point clouds and meshes for free on Android, Windows and Linux, without CAD software.
How to open .YAML files (YAML config files) on Android, Windows and Linux
What .yaml, .yml and .toml files are and how to open and edit Docker Compose, GitHub Actions and Cargo config files for free on Android, Windows and Linux.
How to open HEIC photos and convert them to JPG, on Android and Windows
HEIC photos from iPhones won't open everywhere. View them on Android and convert one or a whole batch to JPG, PNG, WebP or AVIF, for free, keeping the originals.
How to open Markdown and code files on Android, with preview and highlighting
Read README.md files as formatted pages, view Python, JavaScript, Kotlin and 127 more code types with syntax highlighting, and edit and save them, in a free file manager.
How to open RAR, 7z and ZIP files on your phone
Open ZIP, RAR, 7z, TAR, GZ and ISO files on Android or a PC, look inside without extracting, open a single file, or extract everything, for free and without ads.
How to open STL, OBJ and 3MF files on Android (no CAD app needed)
Open STL, OBJ, 3MF, GLB, FBX and 24 other 3D model formats on your Android phone: spin, zoom, check the mesh and see the triangle count, for free.
How to play MKV videos with subtitles, and find subtitles online for free
Play MKV, MP4, AVI and other videos with embedded or external subtitles, search subtitles online without an account, and fix their timing, size and colour.
Read and edit PDF, Word and Excel files offline, without an office suite
Open PDF, DOCX, XLSX and PPTX files on Android, Windows or Linux: search, sign PDFs, add notes, edit Word text and spreadsheet cells, present slides, all offline and free.
Where WhatsApp, Telegram and Instagram keep your files, and how to find them
Find WhatsApp images, videos, documents and statuses, Telegram downloads and Instagram saves on Android: the exact folders, and one place that gathers the files you need most.