About 21st Tools

21st Tools is a curated, searchable directory of SaaS tools. Every tool sits in one of 34 categories, from AI agents and analytics to SEO, video and writing, and has its own page with a description, thumbnail, tags and a link to the product.

Makers submit their own tools, our team reviews them, and visitors upvote the ones they rate. The directory is sorted by those votes, so the tools people actually like rise to the top of All tools and of each category page.

1. Step 1

   Submit

   Create an account, paste your website URL on the submit page and fill in the details: name, tagline, description, category, tags and a thumbnail.

2. Step 2

   Pick Free or Pro

   A free listing asks you to add our badge to your homepage, which we check automatically when you submit. A Pro listing ($9, one-time) skips the badge.

3. Step 3

   Review

   Free listings on a site’s own domain go live as soon as the badge is verified; subdomains and deep links are reviewed by our team first. Pro listings are published right after payment. You get an email at each step.

4. Step 4

   Go live

   Your tool gets its own product page, shows up in All tools and on its category page, and links back to your website.

Free listings keep a dofollow backlink while the badge stays live on your site; Pro listings get a permanent one. The pricing page compares both options.

Anyone with an account can upvote a tool once, and take the vote back by clicking again. Votes are rate-limited and capped at one per tool per IP address, so the ranking reflects real people rather than whoever clicks fastest. Vote manipulation gets a product removed.

• People looking for software who want a short, categorized list of tools with community votes instead of an endless search results page.
• Makers and indie founders who want a permanent product page, a place in their category and a backlink. If you are collecting places to list your product, our directory list covers hundreds more, with free/paid and domain rating for each.
• Sponsors who want to sit next to the tools listings. Sponsor slots appear beside the directory feed and on tool pages; see the sponsor page.

Questions, partnerships or feedback? Email sadekirfan3@gmail.com, or read the FAQ first.