LocalDiff
Secure offline text & code diff checker
What it does
Most diff checkers require uploading your code to their servers. LocalDiff runs 100% in your browser using JavaScript. Compare config files, code snippets, and text securely without data leaving your device. Features dark mode and auto-save.
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LocalDiff for WindowsJun 2026 · zabix.lemonsqueezy.com · ▲4Compare files & folders offline — fast, private, beautiful
- SPSecure private diffchecker with merge supportNov 2025 · diffchecker.dev · ▲17
Built a minimal diff checker with merge feature. 1. Supports 25K+ lines. 2. Character level instant diff. 3. Diff merge feature. 4. Share able links. 5. 100% secure, all diff computation happens in browser. No other website offering high quality diff checker and merge feature with just browser only implementation. Please review the website in detail and share feedback.
- CACodiff, a local diff review toolMay 2026 · github.com · ▲31
Nowadays I review a lot of code locally that was written by llms. I used to review my own code using git + delta. It started to feel limiting with the amount of code written by llms. When looking at a large diff on Friday I pointed an llm at diffs.com and trees.software and told it to build an app. It only took 16 minutes, is extremely fast for large diffs, beautiful and minimal. Today I polished it up and added all the features that I need. It has file filters, search, an llm walkthrough mode, and review comments that you can paste back into your llm. I will be using Codiff a lot, and can…
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