The Best BuiltWith Alternatives in 2026: Cheaper Tech-Lookup Tools, Ranked

The best BuiltWith alternatives in 2026 fall into two camps, and picking the wrong one wastes money. If you just need to see what powers a single website, free tools like Wappalyzer, WhatRuns and urlscan.io do the job for $0. If you need to find every company running a specific technology — the lead-generation use case BuiltWith is known for — SimilarTech and DataFragment cover it for a fraction of BuiltWith's $295-a-month entry price. This guide ranks the real options by price, accuracy and who each one is for.

BuiltWith is the incumbent for a reason: it tracks 122,092 technologies across roughly 491.9 million domains with decades of history. But its plans now start at $295/month and climb to $995, and developers on Hacker News and Reddit routinely call it cost-prohibitive for anything but enterprise sales teams. Most people don't need the whole database — they need one of two narrower jobs done.

Why look for a BuiltWith alternative?

BuiltWith's official plans start at $295/month (Basic), rising to $495 (Pro) and $995 (Team). For a solo developer, freelancer or small team, that is steep for occasional lookups. Two complaints recur across the SERP threads: price, and accuracy. BuiltWith relies on periodic recrawls rather than real-time detection, so a newly changed stack can lag behind what the site actually runs, as independent reviewers note. The fix depends on the job. Single-site tech detection is essentially free in 2026. Only technographic lead-generation — building lists across the whole web — justifies a paid tool, and even there, cheaper challengers exist. Decide which job you are doing before you pay for anything; it is the same match-the-tool-to-the-job logic we used ranking the best Nextcloud alternatives.

BuiltWith alternatives compared (2026)

Prices below were verified against each vendor's own pricing page in July 2026. "Paid from" is the cheapest recurring plan; free tiers are noted separately.

Tool	Best for	Free tier	Paid from (2026)
BuiltWith	Full technographic database	Trial only	$295/mo
Wappalyzer	Real-time detection + prospecting	Yes — 50 lookups/mo	$250/mo
SimilarTech	Filtered lead lists	No	~$290/mo (annual)
DataFragment	Occasional CSV exports	Yes — unlimited lookup	$9 per export
Bloomberry	Enterprise / backend detection	Yes — free account	$199/mo
WhatRuns	Quick single-site lookups	100% free	—
urlscan.io / FUL.io	OSINT / infrastructure checks	100% free	—

What are the best free BuiltWith alternatives?

For looking up one site at a time, you do not need to pay anything. Wappalyzer's free plan gives 50 lookups a month plus a Chrome/Firefox extension that reads a stack in real time. WhatRuns is a completely free extension with no sign-up, covering CMS, analytics, CDN, fonts and WordPress plugins across 450,000+ users. urlscan.io and FUL.io are free for OSINT-style checks — infrastructure, mail providers and inner-page scans. DataFragment goes further with a free, unlimited lookup tool covering 3,900+ technologies, plus pay-as-you-go CSV exports from $9 and no subscription. For most developers and founders auditing a competitor's stack, this tier is enough. If you prefer to self-host a free scanner or dashboard, it runs comfortably on a small VPS — we host our own infrastructure through WaseerHost, and an entry-tier box handles this kind of periodic lookup without strain. See the best VPS hosting in 2026 if you go that route.

Which paid alternative wins for lead generation?

The one job that still justifies paying is technographics: building lists of every company that uses a given technology, for sales prospecting. This is BuiltWith's core, but SimilarTech does it with stronger filtering — by technology, company size and industry — starting around $290/month on annual billing. Wappalyzer's paid tiers ($250–$850/mo) add email verification and API credits, turning it into a combined detection-plus-prospecting tool. Bloomberry targets enterprise and backend detection — CRMs and non-web tools — with a free account and paid plans from $199/month. All three match or undercut BuiltWith's $295 floor while giving you exports that BuiltWith gates behind higher tiers. This kind of technographic data also feeds competitive and generative-engine-optimization research. For one-off list pulls, DataFragment's $9-per-export model beats every subscription.

Which BuiltWith alternative should you pick?

Match the tool to the job and the choice is straightforward:

• Checking one site: Wappalyzer (free) or WhatRuns. Zero cost, instant, browser-native.
• Occasional export, no subscription: DataFragment at $9 per export.
• Ongoing sales prospecting with filters: SimilarTech (from ~$290/mo) — the closest like-for-like BuiltWith replacement, usually cheaper once exports are included.
• Enterprise or backend coverage: Bloomberry.
• You genuinely need the deepest historical database: stay on BuiltWith. Nothing else matches its ~491.9M-domain corpus and multi-decade history.

The mistake to avoid is paying $295/month to look up a handful of sites. That is a free task in 2026.

FAQ

Is there a free alternative to BuiltWith? Yes. WhatRuns and Wappalyzer's free plan both detect a site's tech stack at no cost, and DataFragment offers an unlimited free lookup tool. Free options cover single-site detection well, but they do not replace BuiltWith's full lead-generation database.

Why is BuiltWith so expensive? BuiltWith's paid plans start at $295/month and reach $995 because you are paying for scale — 122,092 tracked technologies across roughly 491.9 million domains and decades of history, plus CRM integrations and lead exports. For occasional lookups that is overkill, which is why cheaper tools exist.

What is the best BuiltWith alternative for lead generation? SimilarTech is the closest like-for-like replacement, with filtering by technology, industry and company size from around $290/month. For one-off list pulls, DataFragment's pay-as-you-go exports from $9 are far cheaper.

Is Wappalyzer better than BuiltWith? For real-time, single-site detection Wappalyzer is faster and has a free tier BuiltWith lacks. BuiltWith wins on database depth and historical data. Many teams use Wappalyzer's extension for quick checks and only pay for a technographics tool when they need bulk lists.

Sources

• BuiltWith — Plans & Pricing: official 2026 plan prices ($295 / $495 / $995 per month), 122,092 technologies and ~491.9M domains tracked.
• Wappalyzer — Pricing: free tier (50 lookups/mo) and paid plans from $250/mo, with lookups, email verification and API credits.
• SimilarTech — Pricing: technographic lead-generation plans from roughly $290/mo on annual billing.
• DataFragment — BuiltWith alternative: free unlimited lookup, 3,900+ technologies, pay-as-you-go CSV exports from $9.
• WhatRuns: free, no-sign-up browser extension for site technology detection.
• Bloomberry — 5 BuiltWith alternatives: independent comparison of tech-intelligence tools and BuiltWith's recrawl-based data lag.