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Show HN: Git-knife – edit commit messages, authors, and dates like a spreadsheet

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Why This Matters

Git-knife introduces a user-friendly GUI for editing detailed commit metadata, including dates and author information, which traditionally required complex CLI commands. This tool bridges a significant gap in existing Git GUIs by enabling bulk modifications and precise control over commit history, making it easier for developers to maintain clean and accurate repositories.

Key Takeaways

Stab your git history into shape — every commit's message, author, and dates, edited like a table.

A clean desktop GUI for editing git commit metadata directly — message, author date, committer date, author name/email.

Existing GUIs (GitKraken, Sublime Merge, Fork, lazygit) reword and reorder well but treat commit dates as effectively immutable and don't expose committer date / author identity for arbitrary commits. The tools that can rewrite that metadata ( git-filter-repo , git rebase env tricks, git commit-tree ) have no GUI. git-knife fills that gap.

It never reimplements git — it shells out to the system git CLI and rebuilds commits with git commit-tree , reusing each commit's original tree so file contents are provably never changed.

How it compares

Tool Clean GUI Reword msg Reorder / squash / drop Edit author date Edit committer date Edit author/email Bulk find & replace (regex) git-knife ✅ ✅ 🚧 planned ✅ ✅ ✅ ✅ GitKraken ✅ ✅ ✅ ⚠️ amend-only ❌ ⚠️ ❌ Sublime Merge ✅ ✅ ✅ ❌ ❌ ⚠️ amend ❌ Fork ✅ ✅ ✅ ❌ ❌ ⚠️ ❌ SmartGit ✅ ✅ ✅ ⚠️ ❌ ✅ ❌ git-cola ◐ ✅ ✅ ✅ ❌ ✅ ❌ lazygit (TUI) ◐ TUI ✅ ✅ ❌ ❌ ⚠️ ❌ git-filter-repo (CLI) ❌ ✅ via callback ✅ ✅ ✅ ✅

Legend: ✅ first-class · ⚠️ possible but awkward/limited · ◐ dated or terminal UI · ❌ not supported · 🚧 planned.

The polished GUIs reword and reorder well but treat commit dates — especially the committer date — as effectively immutable, and none offer a bulk regex pass over author identity. The tools that can rewrite that metadata have no GUI. git-knife is the intersection: a clean GUI that edits every field, in bulk, safely.

Status (MVP)

✅ Open a repo, list commits on the current branch

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