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.

A complete Sigma detection engineering toolkit: parser, linter, formatter, evaluator, correlation engine, conversion framework, streaming daemon, MCP and LSP servers :crab:

Camera RAW to DNG file format converter

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

SVG/XML to Compose ImageVector: IntelliJ IDEA / Android Studio plugin + build-in previewer without compilation, CLI tool, Gradle plugin

A bidirectional Markdown to HTML to Markdown converter written in Javascript

Convert Word (.docx) documents to clean Markdown: CLI, Node library, or in your browser at word2md.com

Universal markup converter

The awesome document factory

Advanced Swift library for media conversion and manipulation

Convert HTML to Markdown with PHP

:page_with_curl: Asciidoctor PDF: A native PDF converter for AsciiDoc based on Asciidoctor and Prawn, written entirely in Ruby.

Convert Evernote .enex files to Markdown

Convert code from C# to VB.NET and vice versa using Roslyn

Create docsets for Dash.app-compatible API browsers.

😎 A list of awesome projects related to OpenAPI 3.0.x, curated by the community

📄 🔄 Doxswap is a Laravel package for seamless document conversion using LibreOffice. Effortlessly convert DOCX, PDF, ODT, and more with a simple, elegant API. Supports Laravel storage, configurable settings, and secure file handling.

Ruby gem & CLI to convert Word (.docx) documents to Markdown. Superseded by word-to-markdown-js at word2md.com

JODConverter automates document conversions using LibreOffice or Apache OpenOffice.

Text calculator with support for units and conversion