Developer tools decision
21st.tools
A single developer can build and run a functional curated tools directory (listings, submissions, upvotes, search) in ~34 hours and modest monthly hosting; the vendor value is community, traffic and brand which are not hard technical barriers.
Visit website↗Built by Sadek, who ships 3 products in this index
Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$100one-off34 h to build
$10/mo3 h/mo upkeep
No published price to break even against.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- A searchable, upvotable developer-tools directory with per-tool pages and submissions.
What it still won’t have
- Existing community, upvotes and traffic accumulated on 21st.tools
- Any editorial curation and publisher relationships
- Brand recognition and domain authority driving inbound users
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
21st.tools does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a searchable, upvotable developer-tools directory: use Postgres, Node.js (Express) backend, React frontend, AWS S3 (or DigitalOcean Spaces) for screenshots, and Docker for deployment. In scope: tool listing pages, submission form, user auth (email or OAuth), upvote/vote deduplication, tag-based search and text search, admin moderation UI, image upload with immediate deletion option, CI pipeline, and basic tests (unit + integration). Out of scope: large-scale SEO/content marketing, advanced recommendation engines, paid plans, and federated login beyond OAuth. Include rate limiting, error handling, logging, and end-to-end tests for core flows.
How we checked
How the score was reached
- Build verdict base78
- 2 cited sources+1
- Evidence score79
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 2
Every page the run actually retrieved.
- official product21st Tools - Discover the Best Developer Tools
- official productRate My Face — tool page on 21st.tools
Integrity checks
What held up, and what did not.
