LeetHub: Automatic GitHub Sync for LeetCode Solutions

Who LeetHub Is For and the Problem It Solves

Software developers who practice algorithmic problems on LeetCode face a documentation problem: their solutions stay inside the LeetCode platform unless they manually copy them to GitHub. Copying code, creating the right file structure, writing a commit message, and pushing after every solved problem adds friction that most developers skip.

LeetHub solves this by running inside the browser. When you pass all test cases on a LeetCode problem, the extension detects the successful submission and pushes the solution code to a designated GitHub repository automatically. The README author describes this as the motivation for building it: improving a coding portfolio without spending additional time on the mechanics of version control.

The target user is a developer preparing for technical interviews who wants GitHub contributions that show consistent problem-solving practice. The repository defaults to private, so the portfolio is visible only when the owner makes it public.

How LeetHub Works Under the Hood

LeetHub is a browser extension written in JavaScript. It reads the LeetCode page DOM to detect when a submission passes all test cases, then calls the GitHub API to commit the solution file to the configured repository.

The extension uses the OAuth flow to connect to GitHub. After installation, clicking the LeetHub icon opens a page where you authorise the extension to access your GitHub account. LeetHub then creates or connects to a repository (private by default) under your account. After that, no further action is required: the extension runs in the background whenever you are on a LeetCode page.

The README describes the authentication approach as fully automatic login without a browser popup. The extension stores the access token so that subsequent visits to LeetCode do not require re-authentication. The package.json file shows no runtime dependencies in the dependencies field, meaning the extension relies entirely on browser APIs and standard DOM manipulation.

Setting Up LeetHub in Chrome or Firefox

LeetHub is available from the Chrome Web Store at the URL listed in the README (aciombdipochlnkbpcbgdpjffcfdbggi) and from the Firefox Add-ons store. After installing, the setup flow described in the README is four steps:

1. After installation, launch LeetHub from the browser toolbar. 2. Click the 'authorize with GitHub' button to connect your account. 3. Click 'Get Started' to set up an existing or new repository. 4. Start solving LeetCode problems.

The repository is created as private by default. The README notes that the extension maintains a private repository unless you change the visibility in GitHub settings. LeetHub's progress page, opened by clicking the extension icon, shows how many problems have been synced.

Local Development Setup

To run LeetHub from source for development or contribution purposes, the README describes loading the extension as unpacked in Chrome:

1. Fork the repository and clone it locally. 2. Open chrome://extensions in Chrome. 3. Enable Developer Mode via the toggle in the top-right corner. 4. Click 'Load unpacked' and select the LeetHub folder. 5. Run the developer dependencies setup:

npm run setup

This installs ESLint, Prettier, and the other devDependencies listed in package.json. After setup, the available npm commands are:

npm run format
npm run format-test
npm run lint
npm run lint-test

The format command runs Prettier over JavaScript, HTML, and CSS files. The lint command runs ESLint. These tools enforce consistent code style across contributions. The devDependencies in package.json do not include any test runner, so the repository currently has no automated test suite beyond the lint and format checks.

The Speed Claim and What It Means

The README headline states a speed of approximately 400ms and describes that as a 530x improvement. The comparison baseline is not explained in the README, so the 530x figure cannot be independently verified.

The 400ms figure refers to the time from a LeetCode submission passing to the GitHub commit appearing. This is the round-trip time of the DOM detection, the GitHub API call, and the response. The extension operates client-side, so the actual latency depends on the GitHub API response time and the user's network connection. The README presents 400ms as the target, not a guaranteed maximum.

This speed matters because it means the GitHub commit appears while the developer is still on the LeetCode results page. There is no waiting period, batch sync, or manual trigger required.

Limitations and Cases Where LeetHub Does Not Help

LeetHub pushes every accepted submission. There is no documented mechanism to filter which problems get synced or to exclude specific problems after the fact. Developers who want to maintain a curated, annotated GitHub repository with explanations will find that LeetHub's automatic approach produces a raw dump of accepted solutions rather than a structured portfolio.

The extension is tied to the LeetCode platform. It does not work with other coding practice sites such as HackerRank, Codeforces, or CodeSignal. The README does not document plans to support those platforms.

The current version in package.json is 0.0.9, and the README describes it as version two of the extension. There is a separate LeetHub v2 mentioned in related searches, suggesting different versions may be available at different repository URLs. The README for this repository does not document any migration path from a previous version.

How LeetHub Compares to LeetSync

LeetSync is another browser extension for syncing LeetCode solutions to GitHub, as indicated by the search query 'Leethub vs leetsync' appearing in related searches and 'Why is LeetSync not working?' appearing in search questions. Both aim to solve the same problem: removing the manual effort of moving LeetCode solutions into a version-controlled repository.

The README for LeetHub does not document how it differs from LeetSync at a technical level. Both are JavaScript browser extensions that authenticate with GitHub via OAuth. The decision between them depends on which is more reliably maintained at the time of evaluation, which is not answerable from the available repository information for LeetHub alone.

For developers who want the automation without the extension approach, the only alternative documented in the LeetHub README is manual GitHub pushing, which the README explicitly frames as the problem LeetHub was built to replace.

Maintenance Status and Licence

The last push to the repository was on 2026-06-22. The repository is not archived. The current package.json version is 0.0.9 and the licence is MIT.

The README links to a Discord server at discord.gg/anXT9vErxu for the community. The project does not carry GitHub releases, so the extension update cycle is managed through the Chrome Web Store and Firefox Add-ons review processes rather than through tagged commits.

Contributors are listed in the GitHub repository contributor graph. The README includes social sharing links and references a YouTube video demonstrating the extension in use. The AGENTS.md file visible in the repository's related GitHub infrastructure suggests some level of contributor tooling, though the README itself focuses on user-facing setup.

Editorial conclusion

Developers who practice LeetCode regularly and want their solved problems to appear in their GitHub profile without manual effort will find LeetHub useful after a one-time setup. The extension is open source under the MIT licence and available from both the Chrome Web Store and Firefox Add-ons. Developers who do not use LeetCode, or who prefer to curate which solutions appear publicly, should note that LeetHub creates a private GitHub repository by default but pushes every accepted submission automatically. Before installing, verify that the extension has not been superseded by a newer version with a different repository by checking the current Chrome Web Store listing.

Frequently asked questions

Official sources

1. Issues
2. License: MIT
3. Project website
4. QasimWani/LeetHub on GitHub
5. README