File Converter GitHub Repositories (2026) · Open Source Tools

Free, open-source file converter. Convert 263 formats offline by drag & drop — images, PDF, Word, Excel, PowerPoint, HWP/HWPX, video, audio, e-books and archives. No upload, no Office needed.

Free, open-source menu bar toolkit for macOS. Eighteen tools in one panel: Pomodoro timer, time tracker, keep-awake, system monitor, clipboard history, file converter, window manager, torrents, archives, OCR, screenshots, draw on screen, color picker, VPN switcher, app launcher, uninstaller, keyboard lock, speed test. SwiftUI, no telemetry, MIT.

Local Android file converter built with Kotlin and Jetpack Compose. Convert files on device, with no ads, accounts, or upload-based fallback.

Free, open-source Mac utility: start dragging any file, tap a key, and drop it on a wheel to convert, edit, AirDrop or shelve it. Runs fully offline.

Transform HTML into DOC, XLS, PDF, JPG, TXT, TIFF with a smooth visual workflow

An open-source native macOS file converter. Local image, video, audio, PDF, and archive tools built with SwiftUI and AppKit.

Drag a file, tap ⇧, drop it on a format. Free, open-source file converter for macOS: images, PDFs, docs, e-books, spreadsheets, video, audio and archives.

Drag-gesture file converter for the macOS menu bar, written in Rust. Drag files, tap a key, drop on a petal.

Convert and edit files from a radial menu, on Windows and Linux. Everything runs on your computer.

Free, open-source, offline file converter for macOS: drag files, tap a key, and convert, crop, compress or share them from a radial menu.

A self-hosted, resource aware file conversion server supporting 490+ formats in 26 languages.