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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.
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7 guides on this topic.
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 .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 .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 .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 .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 .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.