Cyber24 - One Instrument

Cyber24 is a set of file tools that run on the phone, not on a server somewhere else.

DOWNLOADS OVER YOUR OWN CONNECTION
yt-dlp runs on the device, so a public video is pulled over your own IP, not a shared one. Pick a resolution, the audio only, subtitles, or a section of the video. A download keeps running when you leave the app and is there when you come back. Public content only.

PDFS
View, unlock, merge, split, compress, rotate, and password-protect PDFs. Unlocking a restricted PDF happens on the device with no upload. Pinch and pan to zoom.

CONVERT MEDIA AND DOCUMENTS
Audio and video convert on the phone with a bundled ffmpeg. Word, Excel, and PowerPoint files view as PDF, convert, or edit through the server, where LibreOffice does the work. Excel and CSV edit in a grid, Word edits as text.

TEXT AND CODE
Open txt, md, json, xml, yaml, toml, html, csv, and more in a viewer that also edits and saves, on the device.

ARCHIVES
Open zip, 7z, tar, tar.gz, gz, and rar. Pick specific files and extract only those, or repack a selection into a new zip, 7z, or tar.

APK INSPECTION
Read a package's name, version, and permissions, and pull individual files out of it.

TRANSCRIPTION
Turn speech into text, tuned for Bengali, Hindi, and English, with SRT, VTT, and plain text out.

OPEN WITH CYBER24
From any file manager, open a supported file, an archive, an APK, or an Office document straight into the matching tool.

No account required. Signing in is optional and only unlocks role features. Nothing is kept after you have your result.