Diff GitHub Repositories (2026) · Open Source Tools

A keyboard-first diff viewer with LSP support and GitHub integration.

Open Diff: open-source Beyond Compare alternative for file/folder compare, merge, and sync on Windows, macOS, and Linux

A fast, structural YAML diff tool — in a single-dependency binary

The implementations of "An O(NP) Sequence Comparison Algorithm"

git diff for CAD assemblies — two STEP files in, a picture of what changed plus a machine-readable change list out.

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.