Git Commit Message Writer
Write clear, conventional commit messages with 3 options from concise to detailed.
This is an AI tool. The text you enter is sent to our AI service to generate your result. Our own server doesn't store it or use it for training; if it's down, a backup AI provider may handle it. How we handle your input
How to Use Git Commit Message Writer
- 1Describe what you changed. A diff summary or a few lines of plain description both work — 'added retry with backoff to the S3 upload path, fixed the off-by-one in the pagination cursor'.
- 2Pick a format: Conventional Commits, Detailed Multi-Line, Simple One-Liner, or Git-Flow Style.
- 3Click 'Write Commit Messages'.
- 4You get several options. Pick the one that describes what you actually did, and edit the subject line to fit your repo's conventions.
- 5Check the subject line length — under about 50 characters keeps `git log --oneline` readable.
Frequently Asked Questions
What is Conventional Commits?
A convention where the subject starts with a type and optional scope — `feat(auth): add refresh token rotation`, `fix:`, `docs:`, `refactor:`, `chore:`. Tooling reads those prefixes to generate changelogs and decide semantic version bumps, so if your repo uses release automation, this is probably the format you need.
Should commit messages say what changed or why?
The subject says what; the body should say why. A diff already shows what changed — what it cannot show is the reason, which is what someone reading `git blame` in a year actually needs. The Detailed Multi-Line format gives you room for it.
How long should the subject line be?
Around 50 characters, and hard-wrap the body at 72. Those limits exist because `git log --oneline` and various tools truncate beyond them. Trim the generated subject if it runs long.
Why does it give me several options?
Because the right message depends on things the tool cannot see — whether this is a fix or a refactor in your team's vocabulary, which scope name your repo uses. Picking between options is faster than editing one.
Can I paste my diff in?
Yes, and a diff generally produces a more accurate message than a description, because it cannot leave out a change you forgot you made. Strip anything sensitive first — diffs often contain config values and keys.
About Git Commit Message Writer
The Git Commit Message Writer turns a description or a diff into commit messages in one of four conventions, and returns several options rather than one, because the right message depends on vocabulary the tool cannot see.
Conventional Commits is the format worth understanding if you have not used it. The `feat:` / `fix:` / `chore:` prefix is machine-readable, and repos with release automation use it to generate changelogs and decide version bumps. Picking that format when your repo expects it saves a rewrite at merge time.
The thing that makes a commit message valuable is in the body, not the subject. A diff already shows what changed; what it cannot show is why, and that is what someone running `git blame` eighteen months later needs. The Detailed Multi-Line format is the one that makes room for it.
Pasting a diff gives more accurate results than describing the change from memory, since the diff cannot omit something you forgot. Strip config values and keys first — diffs carry more secrets than people expect. Your input goes to our own AI server over HTTPS, is used once, and is never stored or used for training. If our server is down, a backup AI provider may handle the request under its own data policy.