Side by side
BuiltWith vs Cleanlist
Both stand on lead enrichment software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIExtensionWeb
BuiltWith combines website technology profiles with ecommerce research, lead generation, exports, and developer access. Its free individual lookups provide a way to start, while detailed lookup volume and other plan features vary by subscription.
Visit BuiltWith Free plan APIExtensionWeb
Cleanlist combines prospect search, contact enrichment, validation, and AI-assisted lead qualification. Its free tier offers a limited starting allowance; the 14-day trial provides Scale access but excludes API and MCP.
Visit CleanlistThe facts
| BuiltWith | Cleanlist | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Extension, Web | API, Extension, Web |
| Lowest paid plan | See the plans | See the plans |
| Plans published | 5 | 11 |
| Maker | BuiltWith | Not published |
| Website | builtwith.com | cleanlist.ai |
| On lead enrichment software | #1 of 31 | #4 of 31 |
BuiltWith: what it does well
- Free individual website lookups are available.
- Reports can be filtered by category, region, or technology.
- Exports include Excel and CSV formats.
- CRM integrations include Salesforce, HubSpot, and Zoho CRM.
What to know first
- The Free plan allows 10 detailed lookups per day.
- Advanced has a one-year minimum term.
- Higher-tier monthly plans start at $295 per month.
Cleanlist: what it does well
- Free plan includes 30 monthly credits.
- Unsuccessful contact lookups are not billed.
- AI agents can link lead findings to sources.
- Two-way sync is available with three CRMs.
- Fourteen-day Scale trial needs no card.
What to know first
- Free plan is limited to 30 monthly credits.
- Trial excludes public API and MCP.
- Two-way CRM sync requires Pro or Scale.
Alternatives to BuiltWith Alternatives to Cleanlist The whole list

