Dev tools · alternatives · 2026

24 alternatives to https://www.difflens.io

Local-first diff for JSON, cURL, cookies and .http

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   A syntax highlighter for Git and diff output, written in Rust▲261

   A syntax-highlighting pager for git, diff, grep, rg --json, and blame output - dandavison/delta

   2020 · github.com · its alternatives →

2. 2
   Diffle, a keyboard-centric diff viewer with LSP support▲74

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

   14d ago · github.com · its alternatives →

3. 3DI
   Diff.io▲194

   2015 · diff.io · its alternatives →

4. 4
   DiffSense▲394

   Local AI git commit generator for Apple Silicon

   Dec 2025 · edgeleap.github.io · its alternatives →

5. 5
   Language aware diff on GitHub PRs▲8

   Hi HN! We were frustrated with text diffs on GitHub PRs, so we made DiffLens (https://github.com/marketplace/difflens). DiffLens constructs an Abstract Syntax Tree for each file, and uses that semantic information to intelligently diff changes. Checkout the demo on our website (https://www.difflens.com). Getting started with DiffLens is easy! Simply install the app on your repositories. The next time you open a PR, DiffLens will automatically create a diff for your changes. If you review code, especially TypeScript, JavaScript or CSS, give DiffLens a try! We're…

   2022 · github.com · its alternatives →

6. 6
   Secure private diffchecker with merge support▲17

   This brand new secure diffchecker. It's supports text/code diff upto 25k lines with character level diff all in browser. Supports one of the best inhouse diff merge feature. https://diffchecker.dev/ Now, add list diff - to compare two lists and show unique, common and diff between two lists. https://diffchecker.dev/list/ Add json diff, supports semantic json difference. https://diffchecker.dev/json/ With consistent, clean, minimal UI elements. Would you switch from other websites. Please checkout and provide feedback.

   Nov 2025 · diffchecker.dev · its alternatives →

7. 7
   Diff Text▲216

   Dead simple text comparison

   2024 · difftext.com · its alternatives →

8. 8
   API Diff▲161

   Diff two API versions in seconds and see what has changed

   2022 · api-diff.io · its alternatives →

9. 9
   Diff Checker▲14

   Instant AI diff for text, code & JSON right in Chrome

   2025 · trust-fish.com · its alternatives →

10. 10
    Diffchecker▲2

    DiffChecker - Smart cURL & Text Compare Tool

    Feb 2026 · diffchecker.virtualisworld.com · its alternatives →

11. 11AS
    A stab at building my own string diffing library▲29

    Took a stab at building my own string diffing JS package. I built an interactive demo for TypeIt’s website (https://typeitjs.com/build-your-own) a while back. The approach I took to handle user input necessitated a way to calculate the difference between the versions of a user’s text input. I searched around for a package to help me out and found a couple of good ones (like fast-diff), but I either didn’t really like their API or didn’t want to take on a huge new dependency. Instead, I thought I’d give it a shot myself (famous last words). I dove into it having no real formal…

    2022 · its alternatives →

12. 12DA
    Diffmatic – A daily GitHub digest for dev teams▲67

    2014 · diffmatic.com · its alternatives →

13. 13
    Online JSON Diff▲5

    The simplest online JSON diffing tool.

    2018 · json-diff.com · its alternatives →

14. 14
    Diffsmith▲88

    Comment on your AI agent's code & collaborate on changes

    Jul 2026 · apps.mergeable.io · its alternatives →

15. 15
    Syntax Highlight for your github diffs▲18

    2012 · github.com · its alternatives →

16. 16
    DiffBoard▲7

    Compare code, JSON & text with visual diffs

    Jun 2026 · chromewebstore.google.com · its alternatives →

17. 17
    JSON Diff - Chrome Extension▲11

    Diff it like never before :)

    2021 · chromewebstore.google.com · its alternatives →

18. 18
    TryDevSnip▲4

    JSON, JWT & cron tools — pastes stay local

    Aug 2026 · trydevsnip.com · its alternatives →

19. 19
    JSON Diff – Online JSON Diff Finder▲10

    JSON Diff is a free and open-source tool to compare two JSON objects and find differences. Visualize changes in JSON files, easy and fast.

    2015 · json-diff.com · its alternatives →

20. 20AN
    A new way to diff websites▲46

    2015 · diffd.com · its alternatives →

21. 21
    Diffs.vip - Diff Tools▲6

    Privacy-first Diff Tools — JSON, Image, Spreadsheet

    2025 · diffs.vip · its alternatives →

22. 22
    Codiff, a local diff review tool▲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…

    May 2026 · github.com · its alternatives →

23. 23
    JSON Diff Pro Max▲8

    The only accurate JSON Diff tool on this planet

    2025 · jsondiffpromax.com · its alternatives →

24. 24
    I built a Medium alternative for developers using RSS feeds▲33

    diff.blog is the home page of the developers. Join diff.blog to keep updated with the blogs of developers from all over the internet.

    2019 · diff.blog · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →