Omnitool — Web Developer Multi-tool is a strong option, but it is not the right fit for everyone. Below are 10 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
The web developer multi-tool: header rules, screenshots, recorder, color picker, tech stack, SEO & more. No third-party code.
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| Omnitool — Web Developer Multi-tool (original) | — | — | Free | The web developer multi-tool: header rules, screenshots, recorder, color picker, tech stack, SEO & more. No third-party code. |
| website broken link and 404 error checker | — | — | Free | A SEO tool to fast find all broken links on your websites to Rank Higher. |
| SEOFOMO News | — | — | Free | Stay updated with the latest SEO trending stories from SEOFOMO News. Get instant notifications about new stories in your browser. |
| Webopt - Website Testing Tool | — | — | Free | All-in-one Chrome extension for SEO, UI/UX, responsive design, grammar, and security checks. Optimize websites with a single click. |
| Image SEO Optimizer: Audit & Optimize Images | — | — | Free | Image SEO Optimizer is an audit tool to optimize website images for search engines: alt text, captions, size & best SEO practices. |
| Stack Online Tools – Developer Utilities | — | — | Free | Productivity and developer tools with JSON formatter, text converters, password generator, SEO tools, and calculators. |
| Developer Tool in One: SEO, Ruler & Text Checker And More | — | — | Free | All-in-one web developer toolkit. Inspect SEO, audit colors, measure with a page ruler, check text, and capture screenshots. |
| SEOquake | 4.5 | 1M+ | Free | Anyone who wants a broad SEO toolbar without paying, and is willing to spend ten minutes configuring it |
| Keywords Everywhere | 4.5 | 1M+ | Paid | Keyword research in the flow of browsing, for people happy to buy credits instead of a full platform |
| MozBar | 3.3 | 900K+ | Freemium | Sizing up competitor difficulty at a glance, especially for teams already invested in Moz Pro |
| Detailed SEO Extension | 4.9 | 600K+ | Free | The first extension to install for technical and on-page SEO checks, free and account-free |
A SEO tool to fast find all broken links on your websites to Rank Higher.
Why it replaces Omnitool — Web Developer Multi-tool: Covers similar ground in the SEO category: A SEO tool to fast find all broken links on your websites to Rank Higher.
Stay updated with the latest SEO trending stories from SEOFOMO News. Get instant notifications about new stories in your browser.
Why it replaces Omnitool — Web Developer Multi-tool: Covers similar ground in the SEO category: Stay updated with the latest SEO trending stories from SEOFOMO News. Get instant notifications about new stories in your browser.
All-in-one Chrome extension for SEO, UI/UX, responsive design, grammar, and security checks. Optimize websites with a single click.
Why it replaces Omnitool — Web Developer Multi-tool: Covers similar ground in the SEO category: All-in-one Chrome extension for SEO, UI/UX, responsive design, grammar, and security checks. Optimize websites with a single click.
Image SEO Optimizer is an audit tool to optimize website images for search engines: alt text, captions, size & best SEO practices.
Why it replaces Omnitool — Web Developer Multi-tool: Covers similar ground in the SEO category: Image SEO Optimizer is an audit tool to optimize website images for search engines: alt text, captions, size & best SEO practices.
Productivity and developer tools with JSON formatter, text converters, password generator, SEO tools, and calculators.
Why it replaces Omnitool — Web Developer Multi-tool: Covers similar ground in the SEO category: Productivity and developer tools with JSON formatter, text converters, password generator, SEO tools, and calculators.
All-in-one web developer toolkit. Inspect SEO, audit colors, measure with a page ruler, check text, and capture screenshots.
Why it replaces Omnitool — Web Developer Multi-tool: Covers similar ground in the SEO category: All-in-one web developer toolkit. Inspect SEO, audit colors, measure with a page ruler, check text, and capture screenshots.
Instant on-page SEO audit and SERP metrics overlay.
Why it replaces Omnitool — Web Developer Multi-tool: Another popular SEO extension: Instant on-page SEO audit and SERP metrics overlay.
Keyword volume, CPC and competition data inside search results.
Why it replaces Omnitool — Web Developer Multi-tool: Another popular SEO extension: Keyword volume, CPC and competition data inside search results.
Domain and page authority metrics on every SERP.
Why it replaces Omnitool — Web Developer Multi-tool: Another popular SEO extension: Domain and page authority metrics on every SERP.
One-click on-page SEO audit for any URL.
Why it replaces Omnitool — Web Developer Multi-tool: Another popular SEO extension: One-click on-page SEO audit for any URL.
Direct comparisons with the extensions people weigh against it.
website broken link and 404 error checker is the closest match. Covers similar ground in the SEO category: A SEO tool to fast find all broken links on your websites to Rank Higher.
Yes — website broken link and 404 error checker, SEOFOMO News, Webopt - Website Testing Tool are free.
