BuiltWith vs Wappalyzer
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Editorial assessmentBuiltWith compared with Wappalyzer
Wappalyzer covers the same signal with a far friendlier commercial model: a free extension, self-serve credit packs, and lead lists that start in the tens of dollars rather than the hundreds. BuiltWith wins on index size, on eighteen years of dated history, and on unmetered exports at volume. Start with Wappalyzer if you are testing whether technographics work for you at all; move to BuiltWith when you need install and removal dates and are pulling thousands of rows a month.
Choose BuiltWith if
Companies whose product is installed on a website and who sell against a named competitor: Shopify and WooCommerce app vendors, martech and analytics tools, payment and checkout products, agencies pitching replatforming work, and anyone doing genuine market sizing on technology adoption.
Choose Wappalyzer if
Companies whose product displaces or complements a specific, detectable technology, agencies and consultancies prospecting by platform, and competitive analysts who need to know which stacks their market runs on and when those stacks change.
Side by side
13 attributes| Attribute | BuiltWith | Wappalyzer |
|---|---|---|
| Category | Signals | Signals |
| Starting price | $0 for individual site lookups, then $295 per month for Basic (free plan available) | $0 (Free), then $250 per month (Pro) (free plan available) |
| Pricing model | Flat monthly or annual subscription by plan, with no per-row export credits; the lookup API is a separate metered product. | Self-serve tiered subscription metered by lookups, email verifications, and API credits, with seat counts and technology targets as additional per-tier limits. |
| Free plan | Individual site lookups through the website and browser extensions are free forever and unlimited; list building, exports, alerts, and API access are not included. | Free includes 50 lookups and email verifications per month, 5 website alerts, and free sample lead lists. |
| Free trial | No published free trial on paid plans | No time-limited trial; the free tier serves as the evaluation path |
| Best for | Companies whose product is installed on a website and who sell against a named competitor: Shopify and WooCommerce app vendors, martech and analytics tools, payment and checkout products, agencies pitching replatforming work, and anyone doing genuine market sizing on technology adoption. | Companies whose product displaces or complements a specific, detectable technology, agencies and consultancies prospecting by platform, and competitive analysts who need to know which stacks their market runs on and when those stacks change. |
| Setup time | An hour to build a first list, longer to trust it. Sign up, pick your tracked technologies, and run a query; the work is in learning which filter combinations produce a list that is actually addressable rather than 40,000 rows of noise. | Minutes. Install the browser extension, sign up for the free tier, and set five website alerts on the accounts you care about. Building a filtered lead list and connecting a CRM takes an afternoon. |
| Learning curve | Moderate and front-loaded. The interface offers little guidance and the filter grammar rewards experimentation. Most of the skill is knowing which technology combinations imply a real buying situation, and that is domain knowledge rather than software knowledge. | Very low. The core question, what is this site running, is self-explanatory, and the lead list filters behave like any list builder. The judgement work is deciding which technology signals genuinely correlate with your deals rather than which ones are interesting. |
| Platforms | Web application, Chrome extension, Firefox extension, REST API, Bulk datasets | Web application, Chrome, Firefox, Edge, and Safari extensions, Google Workspace add-on for Gmail, API, Bulk data delivery |
| Compliance | GDPR obligations apply to the contact data appended to exports, No publicly advertised SOC 2 attestation | Detection reads publicly available website fingerprints rather than personal data, Contact data handling is subject to standard GDPR obligations |
| Founded | 2007 | 2008 |
| Headquarters | Sydney, Australia | Not publicly disclosed; the company operates as a small distributed team |
| Ownership | Bootstrapped | Privately held with no publicly disclosed venture funding |
Strengths and limitations
BuiltWith
Strengths
- The deepest technographic history available anywhere: dated install and removal records per domain going back to 2007, which no competitor can retroactively manufacture.
- Removal alerts are a genuinely differentiated buying signal, because a company that just uninstalled a tool is shopping right now rather than someday.
- Exports are unmetered on paid plans, so the cost per record collapses at volume instead of climbing the way credit-based vendors do.
- CRM integrations to six systems are included on every paid tier rather than reserved for an enterprise plan.
Limitations
- The $295 entry price with a two-technology cap is a hard wall for small teams, and there is no published trial to de-risk it.
- The interface is dated and dense, and there is effectively no onboarding, so the first week is spent learning a filter grammar by trial and error.
- Support is thin by design in a company with a handful of staff; expect email responses, not a customer success manager.
- Detection is fingerprint-based, so a technology loaded through a tag manager, a server-side proxy, or a reverse-proxied subdomain can be missed entirely, and a leftover script from a tool nobody uses any more will read as an active install. Both directions of error are common.
Wappalyzer
Strengths
- The cleanest signal type in this category, read directly from public fingerprints rather than inferred, so a detection is close to a fact rather than a probability.
- Coverage of more than 8,000 technologies across 106 categories, which is the reference dataset for this question and has been for well over a decade.
- A permanently free tier with five website alerts and fifty lookups a month, enough to monitor key accounts and validate the thesis at no cost.
- Website Alerts turn a static dataset into a timing signal, and migrations detected early are among the strongest buying triggers that exist.
Limitations
- One signal type only. If your buyer's readiness is not expressed through a technology install, Wappalyzer has nothing to say about them.
- Pro's limit of two technology targets and one seat makes the entry tier awkward, pushing most real teams to $450 whether they need the volume or not.
- Detection sees what is publicly loadable, so server-side implementations, tag manager indirection, and privately hosted tools can be missed entirely.
- A technology being present says nothing about satisfaction, contract timing, or budget, so the false positive here is subtler than a wrong detection: it is a correct detection with no buying intent behind it.
Pricing compared
BuiltWith
Flat monthly or annual subscription by plan, with no per-row export credits; the lookup API is a separate metered product.
- Free lookups$0
- Basic$295
- Pro$495
- Team$995
Model it at two volumes. A niche app vendor tracking one competitor and exporting 2,000 rows a month pays $295 on Basic, which works out to roughly 15 cents per record, and that is expensive against a general contact database until you remember no contact database can tell you who installed a specific tag last week. A serious agency on Pro at $495 pulling 40,000 rows across a dozen technologies pays about a cent a record, which is cheap by any comparison. The value curve is steeply in favour of heavy users, and the $295 floor with a two-technology cap is the worst deal in the table. If you cannot see yourself running more than one query a month, use the free lookups and buy something else.
Wappalyzer
Self-serve tiered subscription metered by lookups, email verifications, and API credits, with seat counts and technology targets as additional per-tier limits.
- Free$0
- Pro$250
- Business$450
- Enterprise$850 or more
Wappalyzer is priced as a data product rather than a cheap tool, and whether that is good value depends almost entirely on whether technology installs are your buying trigger. If they are, the signal is close to unambiguous and worth paying for, and Business at $450 with unlimited technology targets and five seats is the tier that actually fits a small sales team. If technographics are merely interesting to you, $250 a month for one seat and two technology targets is poor value next to broader signal tools at half the price. The free tier is the honest test: five website alerts and fifty lookups a month cost nothing, and a fortnight of using them will tell you whether stack changes correlate with your deals.
Editorial verdict on each
BuiltWith
BuiltWith is the definitive technographic dataset and it prices like a tool that knows it has no real substitute. The install and removal history is the asset: knowing that 300 companies dropped your competitor's tag last month is a better prospecting list than any general contact database can produce, and no vendor can go back and manufacture eighteen years of dated records. Buy Pro at $495 if technology installs are the literal trigger for your sale and you will pull thousands of rows a month, because unmetered exports make the cost per record trivial at that volume. Do not buy Basic at $295 hoping to test the idea cheaply, because two tracked technologies is not a test, it is a constraint; use the free lookups or start with Wappalyzer instead. And go in understanding that you are buying a list, not a motion: BuiltWith hands you the names and expects you to already know what to do with them.
Read the full BuiltWith profileWappalyzer
Wappalyzer owns the cleanest signal in this category. A technology detection is read from the site itself rather than inferred from behaviour, so it is close to a fact, and after eighteen years the dataset covering 8,122 technologies is the reference for that question. Whether you should pay for it comes down to one thing: does a technology appearing or disappearing on a prospect's site actually predict a deal for you. Start with the free tier, put website alerts on your five most important accounts, and find out at no cost. If the answer is yes, go straight to Business at $450, because Pro's two technology targets and single seat will frustrate any real team. If the answer is no, buy a broader signal tool instead, because Wappalyzer will not tell you anything about accounts whose readiness is expressed in any other way, and it will not score, route, or act on the signal once it has found it.
Read the full Wappalyzer profileBuiltWith profile last reviewed 2026-08-22; Wappalyzer last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.