par2

High performance PAR2 create client for NodeJS

par2cmdline × ParPar: speed focused par2cmdline fork

The fast Usenet downloader. One self-contained executable: line-rate downloads, one-pass verify and extract, poster wall, built-in indexer. Speaks the SABnzbd and NZBGet APIs, so Sonarr, Radarr, nzb360 and LunaSea connect unmodified

A set of tools for automatically managing bitrot and format in large quantities of media

Command-line File Verify

GUI front-end to ParPar, a PAR2 creation tool

Personal digital preservation for Linux — verifiable, repairable backups designed for recovery years from now.

PAR2 Integrity & Self-Repair Engine - Automated parity protection for directory trees; protect media libraries and backups against corruption and bitrot.

nzb downloading, par2 verification, and unrar in rust with native macOS/iOS GUI and cli on others.

Recursively create .par2 parity for an entire filesystem and automatically keep them up to date even when files are modified!

Universal bitrot detector/healer for linux

Pure Rust PAR2 verify and repair with SIMD-accelerated Galois field arithmetic

A cleanroom reimplementation of the par2 error-correction algorithm, library and cli in Zig, based only on publicly-available specs (NOT its source code), and with a more permissive license, a C ABI wrapper, and a LuaJIT FFI example. Full test coverage. NOTE: gpt-5.2-codex and Claude Opus 4.5 AI assisted in parts.

Semi-automated Par2 file creation / management tool

[WIP] file verification and repair tool, written in go and rust

Containerized dar-backup for automated, verifiable backups—and a versioned restore time capsule that preserves the tools needed for recovery years later.

Renames files to its original name based on checksums found in catalog files (SFV or PAR2).

The offline-first photo vault for Mac — archive, protect, encrypt, and back up your library with zero subscriptions and zero cloud lock-in. Fully open source!

Run par from par2cmdline tools in a Docker image