Git Commit Message Generator
Browser-to-TargetGenerate structured conventional commit messages from git diffs or change descriptions with AI or instant rule-based parsing.
Stored strictly in your browser RAM/localStorage. Never touches our servers.
Conventional Commits Specification
Structure messages following the format 'type(scope): description'. Use with your own OpenAI, Claude, or Gemini API key for deep contextual summaries, or use instant rule-based parsing with zero API keys.
Privacy note
The rule-based generator is fully local. If you add your own AI provider key, the diff or summary you provide goes straight from your browser to that provider, not through AllDevToolsHub.
How to Use Git Commit Message Generator
Pick Commit Type
Select the change type from the dropdown: feat, fix, docs, refactor, perf, test, chore, or style.
Set Scope (Optional)
Type a scope like auth, api, or ui to narrow the commit context. Leave blank for unscoped messages.
Paste Diff or Notes
Paste your git diff or a bullet-point list of changes. Use Load Sample Diff to see the expected format.
Generate and Copy
Click Generate Conventional Commit. Copy the structured message and paste it into your git commit editor.
Git Commit Message Generator: the essentials
The Git Commit Message Generator converts git diffs and bullet points into standardized Conventional Commits (`feat(scope): summary`) with optional AI refinement and zero server data retention.
Key points
- Processes configuration and code locally, your project data never leaves your browser.
- Validates against common standards and best practices for the domain.
- Works offline once loaded, no active internet connection required for processing.
When to use it
- Generating Conventional Commits from a raw git diff before pushing, pick the type (feat, fix, docs, etc.), set scope, and get a structured message.
- Standardizing commit history across a team. Paste bullet-point change notes instead of a diff and the rule-based engine still produces a clean type(scope): summary line.
- Creating detailed AI-refined commit messages for changelog-heavy projects. Connect your own LLM key and the generator writes a full body and footer from the diff context.
Common mistakes
- Using mixed commit types in one message. A single commit should be one of feat, fix, docs, refactor, perf, test, chore, or style. Split multi-change commits into separate entries.
- Writing past-tense descriptions Conventional Commits use imperative tense: 'add OAuth flow', not 'added OAuth flow'. The AI generator enforces this, the rule-based path does not.
- Skipping the scope field when the project uses scoped releases. Scoped commits (feat(auth): ...) enable automatic changelog grouping in tools like semantic-release.
Learn More
What is Git Commit Message Generator?
Frequently Asked Questions
Technical Deep Dive
Commit Message Generator: Practical Usage Guide
This tool is best when you already have a focused diff and need to produce a clear Conventional Commit quickly.
What this tool is good at
- Converting raw diff text into a structured commit header.
- Standardizing team commit history (
feat(scope): summary). - Speeding up routine commits for docs, tests, and small fixes.
What this tool is not good at
- Deciding your release strategy.
- Detecting hidden breaking changes without context.
- Fixing a badly scoped commit that mixes multiple concerns.
Real examples by change type
Feature
- Input context: "Added OAuth device flow and token polling endpoint"
- Output:
feat(auth): add OAuth device flow with token polling
Bug fix
- Input context: "Refresh token parser fails on empty cookie and logs user out"
- Output:
fix(session): handle empty refresh cookie in parser
Refactor
- Input context: "Moved validation logic from controller to shared service, no behavior change"
- Output:
refactor(api): move request validation into shared service
Chore
- Input context: "Updated eslint and prettier config with stricter import ordering"
- Output:
chore(lint): enforce import ordering and formatter sync
Commit type reference (with intent)
| Type | Use when | Semver impact |
|---|---|---|
feat |
You added user-facing behavior | MINOR |
fix |
You resolved incorrect behavior | PATCH |
docs |
Docs-only changes | NONE |
refactor |
Internal restructure without behavior changes | NONE |
perf |
Performance-focused code change | PATCH |
test |
Added/updated tests | NONE |
chore |
Tooling, build, infra, dependency maintenance | NONE |
feat! / fix! |
Breaking API/contract change | MAJOR |
Common mistakes that degrade commit quality
Vague summaries
Bad:fix: update stuff
Better:fix(auth): prevent token refresh loop on 401 retryWrong type selection
Dependency updates should usually bechore, notfeat.Multi-topic commits
If one commit touches migrations, UI copy, and CI config, split it before generating message text.Skipping breaking-change notation
If behavior or public contracts changed, include!and a clear footer.
Limitations and when not to use
- Do not auto-generate commit messages for incident hotfixes without manual review.
- Do not trust generated scopes blindly in monorepos; validate package/module boundaries.
- Do not use AI output as-is when legal/compliance wording is required in release commits.
- Do not generate one message for a "WIP dump" commit; clean and split the diff first.