Changelog Generator
Generate a Keep-a-Changelog formatted release entry — version, date, and your changes sorted into Added, Changed, Fixed, and Removed sections. Free, instant, and private — generation happens in your browser.
Changelog Generator
Generate a Keep-a-Changelog style CHANGELOG.md entry for a release.
Why use a changelog generator formatted to Keep a Changelog standards?
Communicating product updates, bug fixes, breaking changes, and security patches clearly is essential for software maintainers, library authors, and development teams. Manually organizing release logs or dumping raw Git commit logs creates messy documentation that users find difficult to read. Raw commit messages often include internal refactoring notes, typo fixes, and merge commits that obscure meaningful product changes.
An automated changelog generator simplifies release management by building conventional CHANGELOG.md files strictly adhering to the Keep a Changelog and Semantic Versioning (SemVer) specifications. By categorizing changes into standardized sections—Added, Changed, Deprecated, Removed, Fixed, and Security—maintainers deliver transparent, professional release notes for users and contributors.
- Keep a Changelog Standards Compliance: Automatically structures updates into standardized categories (Added, Changed, Deprecated, Removed, Fixed, Security).
- Semantic Versioning (SemVer) Support: Formats version headers with MAJOR.MINOR.PATCH syntax, release dates, and optional diff comparison link references.
- Unreleased Section Management: Maintains an active
[Unreleased]block at the document top to track ongoing pull requests before cutting a formal release tag. - 100% Client-Side Privacy: Formats and generates release documentation locally in browser memory without sending project updates to remote servers.
Release log formatting engine architecture
The changelog generator engine processes user inputs into strict Markdown markup following standard document conventions. It sorts version headers in descending chronological order, handles dates formatted per ISO 8601 (YYYY-MM-DD), and generates bulleted change entries formatted with bold scope tags and issue reference links.
The engine validates SemVer strings to prevent versioning inconsistencies and automatically generates Markdown reference links at the footer for version comparisons (such as [v1.2.0...v1.3.0]). This allows developers to copy clean CHANGELOG.md files straight into GitHub repositories or release tag descriptions.
Client-side security for private release documentation
Drafting release notes and vulnerability fix announcements for private commercial software requires strict data confidentiality prior to public release. ToolJiffy operates on a zero-cloud browser architecture where all release note processing occurs 100% locally in your web browser.
Step-by-step guide to generating a CHANGELOG.md file
- Specify Version & Release Date: Enter your SemVer version number (e.g.,
1.0.0) and target release date. - Enter Categorized Changes: Add list items under Added, Changed, Deprecated, Removed, Fixed, or Security input sections.
- Copy or Download Markdown: Click Copy Changelog or Download CHANGELOG.md to save the release file into your project root.
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Frequently Asked Questions
What is the Keep a Changelog standard format for release logs?
Keep a Changelog is a widely adopted open-source convention for writing human-readable release notes. It categorizes changes into standard sections: Added, Changed, Deprecated, Removed, Fixed, and Security, ordering entries chronologically under Semantic Versioning (SemVer) headers.Why should project release logs be human-readable rather than git commit dumps?
Raw Git commit logs are cluttered with merge commits, refactoring tweaks, and technical noise that end-users do not need. A curated changelog focuses on consumer impact, helping developers and users quickly understand breaking changes, new features, and security patches.What are the six standard Keep a Changelog categories?
The six categories are: Added (new features), Changed (modifications to existing features), Deprecated (features to be removed soon), Removed (deleted features), Fixed (bug fixes), and Security (vulnerability resolutions).How does Semantic Versioning (SemVer) relate to changelog headers?
Semantic Versioning uses MAJOR.MINOR.PATCH syntax (e.g. 2.1.0). MAJOR indicates breaking API changes, MINOR indicates backwards-compatible new features, and PATCH indicates backwards-compatible bug fixes. Version headers in changelogs date and link each release version.Why is an [Unreleased] section maintained at the top of CHANGELOG.md?
An [Unreleased] section tracks ongoing merged pull requests and features currently in master/main prior to tagging a new version. When releasing a build, developers move items from [Unreleased] down into a new versioned release header.Is any of my changelog content or release note data uploaded to a server?
No. The changelog generator runs entirely inside your web browser using client-side JavaScript templates. Version numbers, release notes, commit descriptions, and project details remain completely local and private on your machine without cloud server transmission.Can I generate changelog Markdown files for any programming language stack?
Yes. Keep a Changelog format is language-agnostic Markdown. It works seamlessly for Node.js packages, Python libraries, Rust crates, Go modules, Java artifacts, desktop apps, mobile applications, and internal enterprise software releases.How do I format commit references and pull request links in the changelog?
Each release header can contain Markdown reference links to GitHub or GitLab release diff comparison tags (e.g., [1.2.0]: https://github.com/.../compare/v1.1.0...v1.2.0), enabling users to jump directly to exact code diffs.