git and version control tools Tools

.gitattributes generator creates line-ending rules, binary file markers, Git LFS patterns, and language stats overrides for Node.js, Python, Go, and more. Free, no signup.

Convert conventional git commit messages into a formatted CHANGELOG.md instantly. Supports Keep a Changelog, GitHub Release Notes, and Simple formats. Free, browser-based, no signup.

Build conventional commit messages with the correct format instantly. Supports feat, fix, chore, docs, refactor types with scope, breaking changes, and footer notes. Free, browser-based.

CSV diff checker compares two CSV files row by row and shows added, removed, and modified cells with key column matching. Free, private, all in your browser.

Merge multiple CSV files into one clean output in seconds - perfect for combining exports and preparing unified datasets, no install.

Compare two texts and find differences with side-by-side and unified views. Highlight changes at word or character level with clean, intuitive interface.

Compare two .env files and see added, removed, and changed variables instantly. Understands comments, quotes, and export prefixes. Free, private tool.

Git command generator with 44 task recipes: undo the last commit, squash with rebase, force push safely, recover a deleted branch. Every flag explained, risky commands flagged.

Generate a professional GitHub README.md file in seconds. Auto-fetch project details from any public GitHub repository, add badges, features, installation steps, and license - no boilerplate needed.

Fetch GitHub repository metrics like stars, forks, open issues, and size using the public GitHub API. Quickly audit any repo without leaving your browser.

Fetch public GitHub profile metrics including followers, repos, and gists via the GitHub API - instant results, no login required.

Compare two images pixel by pixel and instantly highlight every visual difference with a diff overlay. Great for visual regression testing, free and browser-based.

IP range to CIDR converter that turns a start and end address into the smallest exact set of CIDR blocks. Merges overlapping ranges, handles IPv4 and IPv6. Free, no signup.

Compare two JSON objects and find all differences. Detect added, removed, and changed properties with full path details and color-coded results.

JSON merge combines two JSON objects with deep merging and configurable conflict handling for arrays and duplicate keys. Free, browser-based, no signup.

Sort JSON object keys alphabetically and recursively in your browser, with ascending or descending order and custom indentation. Produce clean, diff-friendly JSON. Free, no signup.

Write and preview Markdown in real-time with a split-pane editor. Supports GitHub Flavored Markdown, tables, code blocks, and export to HTML.

Convert Markdown files to beautifully formatted PDF documents. Supports GitHub Flavored Markdown, code blocks with syntax highlighting, tables, and custom page sizes.

Markdown TOC generator builds a clickable table of contents from your headings with GitHub-compatible anchor links. Free, browser-based, no signup required.

Size your off-grid solar system for an RV, van, cabin, or emergency backup. Add your appliances, set backup days, and get exact panel count, battery bank size, and charge controller amperage.

Generate complete LICENSE files for your open-source projects. Choose from MIT, Apache 2.0, GPL 3.0, and 10+ licenses - with your name and year auto-filled from GitHub's official license templates.

OpenAPI diff checker compares two Swagger or OpenAPI specs and flags breaking changes: removed paths, methods, and newly required parameters. Free, browser-based.

Merge multiple PDF files into one document online for free. Drag to reorder, preview page counts, and download the combined PDF. 100% browser-based, no upload needed.

Calculate how long it takes to read any text at different reading speeds. Paste text or enter word count to get reading and speaking time estimates.

Generate shields.io badge markdown for GitHub READMEs. Create license, build, npm, coverage, and custom badges instantly. Live preview included. Free, browser-based, no signup required.

Bump semantic versions (major/minor/patch/pre-release), compare two versions, and validate whether a version satisfies an npm-style range like ^1.2.3 or >=2.0.0 <3.0.0.

Test semantic version ranges against a list of versions. Supports npm semver syntax including ^, ~, >=, <, ||, and exact versions. Free, browser-based, no install needed.

Calculate SSH key fingerprints (MD5 and SHA256) from any OpenSSH public key instantly in your browser. Verify server or GitHub keys match ssh-keygen output. Free, no signup.

Convert text between different cases: uppercase, lowercase, title case, camelCase, snake_case, and more. Instant text formatting tool.

Compare two texts for similarity using Levenshtein edit distance. Get a similarity percentage, common substring, and prefix/suffix stats instantly. Free, no signup.

YAML diff checker compares two YAML files and shows every added, removed, and changed key with structural diffing that ignores order and formatting. Free, private tool.

Format, beautify, and validate YAML documents with proper indentation. Convert between different YAML styles and detect syntax errors.