How to Contribute to Open Source for the First Time

Contributing to open source for the first time is intimidating. You are looking at a codebase written by strangers, with conventions you do not fully understand, maintained by people you have never met. The fear of doing something wrong, submitting a naive pull request, or wasting a maintainer’s time keeps many developers on the sidelines.

Here is the truth: every active open source contributor was once exactly where you are now. And the process is far more approachable than it appears from the outside. Having made my own first open source contribution years ago (a documentation fix that took me an entire afternoon to work up the courage to submit), I can tell you that the hardest part is clicking “Create pull request” for the first time.

Why Contribute at All?

Before diving into the how, it is worth understanding the why. Open source contributions offer benefits that are hard to replicate elsewhere.

You learn from real codebases. Open source projects are production software. Reading and modifying them teaches you patterns, architectures, and practices that tutorials do not cover.

You build a public track record. Your contributions are visible, reviewable proof of your skills. Unlike private work behind a company firewall, open source work is something you can point to in interviews and on your CV. This is particularly valuable when navigating your developer career and demonstrating growth.

You improve the tools you rely on. That library with a confusing error message? That CLI tool missing a feature you need? You can fix these yourself instead of waiting for someone else to do it.

You practise collaboration. Working with maintainers and other contributors builds communication skills, teaches you how to give and receive code review feedback, and familiarises you with distributed teamwork.

The GitHub Open Source Survey ↗ found that 84% of respondents said that open source experience was valued in hiring decisions. Whether you are looking for your first role or your next step, open source contributions signal initiative and competence in ways that personal projects alone cannot.

Finding the Right Project

The biggest mistake first-time contributors make is trying to contribute to a high-profile project like React or Kubernetes before they are ready. These projects have complex codebases, strict review processes, and long contributor queues. Start smaller.

Contribute to something you use

The easiest starting point is a tool, library, or framework you already use. You understand its purpose, you have context on how it behaves, and you may have already encountered bugs or rough edges.

Check the project’s issue tracker. Look for issues labelled “good first issue” or “help wanted.” These are specifically tagged by maintainers as suitable for new contributors.

Look for active, welcoming projects

Before investing time, check for signs of a healthy project:

Health Signal	What to Look For	Red Flag
Recent activity	Issues responded to within days, PRs merged regularly	No activity for 6+ months
Contributing guide	CONTRIBUTING.md with clear setup and PR process	No guide, unclear expectations
Code of conduct	CODE_OF_CONDUCT.md present	Hostile tone in issue discussions
Maintainer responsiveness	Constructive feedback on PRs, timely responses	PRs ignored for weeks
CI/CD pipeline	Automated tests, linting on PRs	No tests, no CI

Curated starting points

Several websites aggregate beginner-friendly issues:

• GitHub’s “good first issue” topic ↗
• goodfirstissue.dev
• up-for-grabs.net
• firsttimersonly.com

These can help you discover projects you would not have found otherwise.

Your First Contribution: Step by Step

Step 1: Read the contributing guide

Before writing a single line of code, read the project’s CONTRIBUTING.md, README, and any developer documentation. Pay attention to:

• How to set up the development environment
• The branching strategy and PR process
• Code style requirements and linting rules
• Testing expectations
• The issue assignment process (some projects ask you to comment before starting work)

Step 2: Set up the development environment

Fork the repository, clone your fork, and follow the setup instructions. Run the tests. Build the project. Make sure everything works before you change anything.

This step catches environmental issues early. If the setup instructions are broken or incomplete, that itself could be your first contribution: fixing the docs. Many successful open source contributors started by improving documentation rather than writing code.

Step 3: Pick an issue and communicate

Find an issue you want to work on and leave a comment indicating your interest. Something simple works well:

“Hi, I would like to work on this issue. I am a first-time contributor. Is this still available?”

This avoids duplicate work and gives the maintainer a chance to provide guidance or context that is not in the issue description.

Step 4: Make the change

Create a branch, make your changes, and commit with clear messages. Follow the project’s conventions for commit format, code style, and testing.

Keep your change focused. If you notice an unrelated bug while working, file a separate issue rather than bundling it into your PR. Reviewers appreciate focused, easy-to-review pull requests.

Step 5: Write tests

If the project has tests, write tests for your change. If you are fixing a bug, add a test that would have caught it. If you are adding a feature, add tests that cover the core behaviour.

Submitting code with tests signals that you take quality seriously and significantly increases the chance of your PR being accepted.

Step 6: Submit your pull request

Write a clear PR description explaining what you changed and why. Reference the issue number. If the project has a PR template, fill it out completely.

Be explicit about anything you are uncertain about. Maintainers appreciate honesty: “I was not sure whether to handle this edge case here or in the caller. Happy to adjust.”

Step 7: Respond to feedback

Code review feedback is normal and expected. Do not take it personally. Maintainers may ask you to change your approach, adjust your coding style, or add additional test cases.

Respond to every comment, even if just to acknowledge you have seen it. Make the requested changes promptly while the context is fresh.

Contributions That Are Not Code

If writing code feels too intimidating as a first step, there are valuable non-code contributions:

• Documentation fixes: Typos, unclear instructions, missing examples. Maintainers love documentation improvements.
• Bug reports: A well-written bug report with reproduction steps is a genuine contribution. Include the version, operating system, steps to reproduce, expected behaviour, and actual behaviour.
• Issue triage: Help maintainers by reproducing reported bugs, asking for clarification on vague issues, or identifying duplicates.
• Translation: Many projects need help translating documentation or UI strings.
• Testing: Download a release candidate and test it. Report what works and what does not.

These contributions are respected and appreciated. They are not lesser because they do not involve code. As someone who has maintained open source projects ↗, I can say that a thoughtful documentation improvement is often more valuable than a code change, because it helps every future contributor who follows.

Common Mistakes to Avoid

Do not submit a PR without reading the contributing guide. This is the most common way to frustrate a maintainer.

Do not claim an issue and then disappear. If you realise you cannot complete the work, comment on the issue to let others know.

Do not open a massive PR as your first contribution. Start with something small and self-contained. Build trust first.

Do not take rejection personally. Maintainers are volunteers with limited time. A rejected PR is feedback, not a judgement of your worth as a developer.

Building from Here

Your first contribution will feel slow and uncertain. That is completely normal. The second one will be faster, and by the third, the process will feel natural.

Over time, you may find a project that resonates with you. You will go from fixing typos to implementing features, from submitting PRs to reviewing them, and eventually from contributor to maintainer. If the journey from contributor to project leader interests you, the guide on maintaining an open source project covers the lessons learned along the way.

Open source is not just about code. It is a community of people building things together. Your first pull request is the invitation to join. The skills you develop, from writing clear commit messages to navigating code review, transfer directly to every professional development role you will ever hold.