Codiff
Dev tools
diff review tool
SHOW HN2026
How HN took it
2 positive, 3 neutral or asking, 0 mixed, 3 critical, out of 8 comments about the project. Thread score 0.00.
Idea: 2 for, 1 againstPerformance: 0 for, 1 againstExecution: 0 for, 1 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Fast on large diffs and useful features like file search
From 2 comments
Surprisingly enough this has just a few features the JetBrains diff view is lacking, notably file search… good ideas
usernametaken29 on HNThat's awesome. Been reviewing code diffs on the IDE and it's been hard, so will check this out!
sjhalani7 on HN
Objections
Mostly macOS only
From 1 comment
... for MacOS.
atmanactive on HN
Many similar vibe-coded alternatives already exist
From 2 comments
Is diff viewer the 2026 todo list? List of vibe coded alternatives: - revdiff: https://github.com/umputun/revdiff - hunk: https://github.com/modem-dev/hunk - diffnav:…
magnio on HNWho knew that the killer task for LLMs would be "recreate existing things that exist without me mentioning them by name, based on a worse alternative as the example".…
stephenr on HN
Electron-style app is not truly native
From 2 comments
Kids these days. Calling JS "native" makes my stomach ache, but apparently this is normal.
bestouff on HNYou're seriously suggesting that an electron app you vibe coded in two days is more performant than native code that's been developed and improved and tweaked over literal decades?
stephenr on HN
Requests
Add screenshots to the README
From 2 comments
Would love to see some screenshots in your readme of this!
Evan-Purkhiser on HNCan you include screenshots in your readme? Also does it only work for staging and unstaged changes? I use jj so I need to be able to point it at commits since jj has no staging…
tcoff91 on HN
Support reviewing specific commits, e.g. for jj
From 1 comment
Can you include screenshots in your readme? Also does it only work for staging and unstaged changes? I use jj so I need to be able to point it at commits since jj has no staging…
tcoff91 on HN
Questions
Does it work with commits rather than only staged and unstaged changes?
From 1 comment
Can you include screenshots in your readme? Also does it only work for staging and unstaged changes? I use jj so I need to be able to point it at commits since jj has no staging…
tcoff91 on HN
Alternatives named
Kaleidoscope
From 1 comment
Who knew that the killer task for LLMs would be "recreate existing things that exist without me mentioning them by name, based on a worse alternative as the example".…
stephenr on HN
File Merge
From 1 comment
Who knew that the killer task for LLMs would be "recreate existing things that exist without me mentioning them by name, based on a worse alternative as the example".…
stephenr on HN
revdiff, hunk, diffnav, diffx, lumen
From 1 comment
Is diff viewer the 2026 todo list? List of vibe coded alternatives: - revdiff: https://github.com/umputun/revdiff - hunk: https://github.com/modem-dev/hunk - diffnav:…
magnio on HN
prereview
From 1 comment
:) We are all converging on the same problems and tooling to fix them. Built this in the last couple days to review changes done by claude on a hetzner box(over tailscale on my…
realrocker on HN