Diffle

Diffle is a keyboard-first diff viewer with LSP support and GitHub integration.

Diffle is a keyboard-first diff viewer that runs in the browser and lets you review Git diffs. You can comment on lines, blocks, or whole files, and hand those comments to an agent as a prompt or to GitHub as a pending review. It starts a language server for each language in the diff to support features like jump to definitions, type definitions, references, and hover docs. Comments live in a separate directory and never touch your worktree, following text as code changes. It supports Linux, macOS, and Windows platforms.

Diffle at a glance

Best for: Software engineer
Runs on: Linux, macOS, Windows, Web
Pricing: Free
Released: October 2026
Category: AI coding tool
Website: github.com/moritzwilksch/diffle

Key features

Review Git diffs in the browser
Comment on lines, blocks, or whole files
Send comments to GitHub as a pending review
Jump to definitions and find references via LSP
Search current file or all changed files
Filter files and open full files
View hover documentation for JSON, YAML, and TOML

Use it for

Review pull requests and commit ranges
Comment on code diffs using keyboard shortcuts
Jump to code definitions during a review
Export review comments to GitHub

Alternatives to Diffle

guides.show — Explains code diffs in order of importance through portable, encrypted links
Diff Tour — Generates guided reviews of git branches with read-only LLM permissions.
dif.sh — Feature flags and experiments live in git as Markdown files with zero signup required.
What The Diff — It automatically writes pull request descriptions and summarizes code changes.
Diffity — Review local or agent code changes like a pull request and let agents fix them.
jevgrep — Reduces coding agent costs by providing targeted, relevant repository context.
Hunk — Renders agent reasoning beside code and streams multi-file changes top to bottom.
Hazzel — Brings inspectable safety mechanisms, local model support, and zero subscriptions.
DiffGuardian — Get spoken PR walkthroughs and live call graphs without sending code to cloud servers.
Diffblue — Generates verified, production-ready unit tests across entire repositories.
Weft — It enables safe parallel coding agent work without file locks.
Sphinx — Requires understanding of agent-generated code before shipping.

All Diffle alternatives