Local file conversion for your own machine. Right-click a file, pick a format, and convt writes the result next to the original. Images, video, audio, PDFs and documents stay on disk: nothing is uploaded.
- 40 formats, routed through native engines (FFmpeg, PDFium, LibreOffice, image, resvg)
convtCLI today; desktop app coming Linux-first. Finder and Explorer menus are not ready- Multi-hop routes of at most three steps when no engine can convert directly
- Optional document pack for Word, Excel and PowerPoint, installed only when you ask
- Accounts, checkout and downloads on convt.app
The CLI works from this repo today. Ordinary source builds are unrestricted. Desktop builds will appear on the download page (Linux first). Packaged builds start a 7-day trial on the first conversion.
bun run setup
cargo run -p convt-cli -- photo.png --to webpbun run setup installs system packages (asks for sudo on Linux and macOS), the Rust toolchain, Bun dependencies and PDFium. On Windows run scripts/setup-windows.ps1 in PowerShell.
convt clip.mov --to mp4
convt photos/ --to webp -r
convt lease.pdf --to png --pages 1-3From a checkout, prefix those with cargo run -p convt-cli --. Output lands next to each input unless you pass --out-dir.
convt registers whatever can run on this machine and picks a route:
- FFmpeg for video and audio (MP4, MOV, WebM, MKV, AVI, MP3, WAV, FLAC, AAC, M4A, OGG, Opus)
- LibreOffice for Word, Excel, PowerPoint and their open formats, and for saving any of them as PDF
- PDFium to render PDF pages to PNG or JPEG
- image and resvg for photos and SVG (JPEG, PNG, WebP, AVIF, GIF, TIFF, BMP, ICO, TGA, PPM, QOI, OpenEXR)
- libheif, or
sipson macOS, for HEIC
Office files need LibreOffice on PATH. Released builds can also run convt pack install documents. Ordinary source builds need a system LibreOffice, or an explicit --source and --sha256. The engines never start that download themselves.
convt engines # backends available here
convt targets photo.heic # formats this file can reach
convt targets photo.heic --menu
convt formats
convt presets
convt pack status documentsconvt --help lists quality, size, pages, DPI, video and job flags. See AGENTS.md for the rest of the commands in this repo.
- convt.app — product site, pricing and sign-in
- Download — desktop builds and matching source archives
- Formats — every format and the targets it can reach
- AGENTS.md — crate layout, conventions and how to run the website locally
convt is open source under the GNU AGPL v3. The signed desktop builds, convt Cloud and the API are paid. "convt" and the convt logo are trademarks and are not covered by the code license.
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