Welcoming Repositories Index HTML Ecosystem
Top Welcoming Open-Source HTML Repositories
Top welcoming HTML repositories. Scored by real 90-day external PR merge rates, maintainer review turnaround speed, and first-time contributor success.
Updated daily • Sun, 11 Oct 2026 UTC
Tracked Repos
4,774
>100 stars verified
Avg Merge Rate
80%
90-day external PRs
Open GFIs
44
Beginner friendly issues
Welcoming Tier
50
S & A Tier maintainers
Ranked HTML Repositories
Showing top 50 of 4,774 ranked repositories
| Rank | Repository | Tier | Score | Merge Rate | Good First Issues |
|---|---|---|---|---|---|
| #1 | OASIS CSAF TC: Supporting version control for Work Product artifacts developed by members of TC, including prose specifications and secondary artifacts like meeting minutes and productivity code | S•Elite | 79.3 | 93.8% | 6 |
| #2 | A collection of Galaxy-related training material | S•Elite | 74.4 | 70.8% | 1 |
| #3 | nunocoracao/blowfish2,906 Personal Website & Blog Theme for Hugo | S•Elite | 72.7 | 88.5% | - |
| #4 | 🏎 An online formulae browser for Homebrew | S•Elite | 72.3 | 95.3% | - |
| #5 | Repository for the new version of canonical.com | S•Elite | 72.3 | 78.8% | - |
| #6 | VCF visualization interface | S•Elite | 71.6 | 81.8% | 1 |
| #7 | Source for the istio.io site | S•Elite | 71.4 | 75.6% | - |
| #8 | Bitcoin.org Website | S•Elite | 71.2 | 91.3% | - |
| #9 | darktable user manual | S•Elite | 71.2 | 73.9% | - |
| #10 | S•Elite | 71.1 | 77.8% | - | |
| #11 | A static site for the Jenkins automation server | S•Elite | 71.0 | 78.0% | - |
| #12 | OneZoom Tree of Life Explorer | S•Elite | 70.4 | 70.6% | - |
| #13 | Tencent/libpag5,757 The official rendering library for PAG (Portable Animated Graphics) files that renders After Effects animations natively across multiple platforms. | A•Welcoming | 69.8 | 70.3% | - |
| #14 | A•Welcoming | 69.7 | 92.9% | - | |
| #15 | A guide to how rustc works and how to contribute to it. | A•Welcoming | 69.7 | 68.1% | 2 |
| #16 | Home of test infrastructure for Adoptium builds | A•Welcoming | 69.6 | 79.1% | - |
| #17 | Metamath source file for logic and set theory | A•Welcoming | 69.5 | 69.5% | - |
| #18 | Arelle open source XBRL platform | A•Welcoming | 69.5 | 73.9% | - |
| #19 | The Web Security Testing Guide (WSTG) Project produces the premier cybersecurity testing resource for web application developers and security professionals. | A•Welcoming | 69.1 | 91.0% | - |
| #20 | slsa-framework/slsa1,943 Supply-chain Levels for Software Artifacts | A•Welcoming | 68.7 | 90.9% | - |
| #21 | DSH Web 选中批注插件：选文字→批注→回车随消息发送；气泡隐藏批注块（零闪烁）；回复按 Annotation N 逐条对照（可悬浮芯片）。官方 bundle，零核心改动 | A•Welcoming | 68.4 | 85.7% | - |
| #22 | A•Welcoming | 68.4 | 76.0% | - | |
| #23 | Website for Quarkus project | A•Welcoming | 68.4 | 73.8% | 2 |
| #24 | Last Week in Kubernetes Development | A•Welcoming | 68.3 | 78.0% | - |
| #25 | Roslyn Source Code Generators with Examples | A•Welcoming | 68.0 | 100.0% | - |
| #26 | Proposed Web Monetization standard | A•Welcoming | 67.9 | 70.0% | - |
| #27 | Engineering specs for DirectX features. | A•Welcoming | 67.8 | 100.0% | - |
| #28 | 🐤 DuckDB website and documentation | A•Welcoming | 67.7 | 69.8% | - |
| #29 | Dev version of the ballerina.io website | A•Welcoming | 67.5 | 82.4% | - |
| #30 | This is an example app used to showcase Cypress.io testing. | A•Welcoming | 67.5 | 94.4% | - |
| #31 | marchof/java-almanac1,149 The history and future of Java. | A•Welcoming | 67.5 | 100.0% | - |
| #32 | Test suites for Web platform specs — including WHATWG, W3C, and others | A•Welcoming | 67.4 | 62.6% | - |
| #33 | Hisn00w/ASu-skills1,556 简历包装 | A•Welcoming | 67.4 | 84.6% | - |
| #34 | Home of the Rust and Inside Rust blogs | A•Welcoming | 67.3 | 78.1% | - |
| #35 | LFDT Labs | A•Welcoming | 67.1 | 94.4% | - |
| #36 | Web pages and apps used to demo various DevTools, PWA, WebView, Extensions, and Web Platform features of Microsoft Edge | A•Welcoming | 67.0 | 100.0% | - |
| #37 | :microscope::books: Galaxy Tool wrappers | A•Welcoming | 66.9 | 65.2% | - |
| #38 | tobychui/zoraxy5,389 A general purpose HTTP reverse proxy and forwarding tool. Now written in Go! | A•Welcoming | 66.8 | 61.5% | 10 |
| #39 | Open Food Facts database, API server and web interface - 🐪🦋 Perl, CSS and JS coders welcome 😊 For helping in Python, see Robotoff or taxonomy-editor | A•Welcoming | 66.6 | 59.1% | - |
| #40 | Tool for rendering manifest changes on pull requests. | A•Welcoming | 66.6 | 92.6% | - |
| #41 | jdm-contrib/jdm1,375 A directory of direct links to delete your account from web services. | A•Welcoming | 66.5 | 80.6% | - |
| #42 | A•Welcoming | 66.5 | 75.0% | - | |
| #43 | Web application generating interactive and highly customizable maps | A•Welcoming | 66.4 | 67.3% | - |
| #44 | SAP Design System component library for building SAP user interfaces with any web technology. | A•Welcoming | 66.4 | 95.2% | - |
| #45 | 清华大学计算机系课程攻略 Guidance for courses in Department of Computer Science and Technology, Tsinghua University | A•Welcoming | 66.0 | 100.0% | - |
| #46 | Go语言俱乐部，汇总面试真题、八股文等。 | A•Welcoming | 65.6 | 93.1% | - |
| #47 | OCA/hr288 Odoo Human Resources Addons | A•Welcoming | 65.6 | 71.4% | 1 |
| #48 | A•Welcoming | 65.5 | 78.0% | - | |
| #49 | The official website for the Ubuntu operating system | A•Welcoming | 65.5 | 64.4% | - |
| #50 | kubernetes/website5,338 Kubernetes website and documentation repo: | A•Welcoming | 65.2 | 49.9% | 21 |
How to Get Your HTML PR Merged
1
Check C-Rank™ First: Pick projects with S or A tiers to avoid maintainer ghosts and slow review cycles.
2
Run Local Verification: Ensure test suites and formatting linters pass before opening a pull request.
3
Submit in Maintainer Windows: Check the repository report card to submit when maintainers are most active.
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Frequently Asked Questions: HTML Open Source
What is the most welcoming HTML open-source repository?
The highest-ranked HTML repository on GetMerged is currently oasis-tcs/csaf, with a C-Rank score of 79.3/100 and a 93.8% PR merge rate.
How can I find good first issues in HTML?
You can browse verified beginner-friendly issues in HTML by visiting our curated Good First Issues directory at getmerged.abhishekco.de/good-first-issue/html.
What makes a HTML repository ‘Super Welcoming’ on GetMerged?
A ‘Super Welcoming’ (S-Tier) HTML repository demonstrates an external PR merge rate above 80%, a median first response time within 24 to 48 hours, active review feedback, and clear onboarding documentation.