Best BuiltWith alternatives 2026.
Ten tools compared honestly. The enterprise upgrade (HG Insights, SimilarTech), the self-serve direct competitors (Wappalyzer, Bloomberry, TheirStack), the free browser extensions (WhatRuns, StackShare), public web-stats research (W3Techs), and the wildcard most lists miss: hiring-signal intent.
Published 2026-05-27 · 12 min read
How to pick: the five categories
Sales-led platforms with deep technographics, install-base data, IT spend signals, and account intelligence layered on top. Five and six-figure annual contracts.
e.g. HG Insights, SimilarTech
BuiltWith's actual shape - paid bulk lookups, lead lists, API access on transparent monthly plans. The direct competitive surface.
e.g. BuiltWith, Wappalyzer, Bloomberry, TheirStack
Browser extensions and free site lookups for one-off curiosity. No bulk export, no lead-gen workflow.
e.g. WhatRuns, Wappalyzer (extension), StackShare
Aggregate web-technology statistics published as research. Great for 'what percent of the web runs X' questions; not built for prospecting.
e.g. W3Techs
Not a tech-stack detector at all. Looks at the team being built around the website, not the website itself. Fires earlier than any technographics tool can.
e.g. JobsPipe
The 10 alternatives
Best for: Enterprise GTM teams that need install-base data, IT spend, and contract renewal intelligence at account level.
Sales-led; median contract reported around $75k/year, range roughly $23k-$160k.
Demo on request, no self-serve trial
- Detects behind-the-firewall technologies that web-scraping tools like BuiltWith cannot see.
- Bundles 12-month IT spend projections across 140+ categories alongside the tech footprint.
- Mature integrations with Salesforce, HubSpot, Marketo, and 6sense for native account scoring.
- Coverage of 20,000+ products including hardware, communications, and services BuiltWith ignores.
- Pricing is 50-200x BuiltWith for teams that only need website-side detection.
- Multi-week procurement cycle; no API key in 5 minutes.
- Overkill for indie founders, freelancers, or small sales teams.
The right BuiltWith replacement when the gap is actually depth and enterprise-grade install-base data, not price. If you just want to know what CMS a site runs, this is the wrong category entirely.
See HG Insights's tech stack →Best for: Mid-market and enterprise sales teams that want a BuiltWith-shaped product with sales prospecting workflows built in.
Self-serve plans reported around $200-$490/month; enterprise sales-led above that.
Free demo; limited free lookups
- Largest direct competitor to BuiltWith with comparable detection breadth.
- Bundles contact data and firmographics with the technographic signal in one platform.
- 50+ search filters for building tech-targeted lead lists.
- Stronger international coverage than BuiltWith in EMEA and APAC.
- Public pricing is opaque; quoted ranges vary widely depending on seat count and credits.
- Frontend-only detection like BuiltWith - misses backend, CRM, ERP, devops tooling.
- Contact data quality is mixed; pair with a real contact-data tool for serious outbound.
Pick SimilarTech over BuiltWith when bundled contacts and prospecting filters matter more than the BuiltWith brand. For pure tech detection without the sales workflow, Wappalyzer or Bloomberry are cleaner.
See SimilarTech's tech stack →Best for: Teams that want BuiltWith-style bulk lookups at meaningfully lower price points with cleaner self-serve onboarding.
Free extension; paid plans from $250/month (Pro) up to $850+/month (Enterprise).
Free browser extension; 50 free lookups/month on registered free tier
- The browser extension is the de-facto standard for one-off tech checks - free, accurate, ubiquitous.
- Paid plans run roughly 15-50% cheaper than BuiltWith at equivalent volume.
- Clean credit-based API priced for engineers who want to wire it into enrichment pipelines.
- Bulk lookup supports 100,000+ records per job for list enrichment workflows.
- Free-tier credits expire after 60 days, which is shorter than most users expect.
- Detection still frontend-only; same blind spots as BuiltWith for backend and ops tooling.
- Lead-list filtering is less granular than SimilarTech for sales-driven motions.
The default BuiltWith alternative for most teams. Same shape as BuiltWith, ~30% cheaper, faster onboarding. Pick BuiltWith over Wappalyzer only if a specific BuiltWith dataset (historical trends, niche CMS) is actually load-bearing for you.
See Wappalyzer's tech stack →Best for: Teams that need BuiltWith's specific historical-trend data or the brand recognition for stakeholder reporting.
Basic $295/month (2 technologies), Pro $495/month, Team $995/month annual.
Free individual site lookups; no bulk-export free tier
- Longest-running historical dataset in the category - tech adoption trends going back over a decade.
- Brand recognition with non-technical stakeholders; reports are accepted without explanation.
- Free site-lookup page is good enough for ad-hoc curiosity without an account.
- Strong on ecommerce-platform detection (Shopify, BigCommerce, Magento) specifically.
- Basic plan locks you to 2 technologies, which is a frustrating gating decision for the price.
- Pricing has crept up consistently while feature parity with Wappalyzer narrowed.
- Frontend-only detection; significant blind spot for backend, internal tooling, and CRM.
Stay on BuiltWith if you've built workflows on its specific dataset or trend data; otherwise Wappalyzer covers the same shape for less. The brand premium is real but harder to justify each year.
See BuiltWith's tech stack →Best for: Sales teams that need to detect non-web tools - CRMs, ERPs, security platforms, devops - that BuiltWith cannot see.
Free account available; paid plans from approximately $199/month.
Free tier
- Detects 1,300+ products including backend and behind-the-firewall tools that BuiltWith and Wappalyzer miss.
- Real-time purchase and churn signals derived from DNS, certificate, and subprocessor changes.
- Entry pricing roughly $100/month cheaper than BuiltWith Basic with broader detection.
- Methodology is novel enough that it surfaces signal HG Insights charges 100x more for.
- Newer product; smaller community and fewer third-party integrations than BuiltWith.
- Detection confidence varies by category - frontend is excellent, backend depends on signal availability.
- Has marketed itself aggressively which has generated some reviewer skepticism.
The most interesting BuiltWith alternative on this list. If your real gap is detecting tools that don't leave a JavaScript fingerprint, Bloomberry is the right answer. Worth a free-tier evaluation before defaulting to Wappalyzer.
See Bloomberry's tech stack →
Best for: Indie sales teams and developers who want technographics derived from job postings at indie-friendly prices.
Free plan; paid plans from $59/month; Pro plan $169/month for API-heavy use.
Free tier
- Detects technologies from job postings, which catches backend stacks invisible to web scrapers.
- Indie-priced: entry plans 5-10x cheaper than BuiltWith for comparable detection breadth.
- Each detection links back to the verifying job posting as evidence - audit trail is real.
- Credits roll over for 12 months, which is friendlier than most credit-based competitors.
- Coverage is limited to companies that actually post jobs - SMB and stealth-mode firms thin out.
- Technology signal lags reality by 1-2 quarters since it depends on hiring cycles.
- Not a replacement for BuiltWith if you need full historical trend data on web technologies.
The strongest indie-priced BuiltWith alternative if your buyers are hiring-active companies. Pair it with Wappalyzer for full coverage; the two together cost less than BuiltWith Basic alone.
See TheirStack's tech stack →Best for: Researchers, journalists, and analysts who need 'what percent of the web runs X' questions answered.
Free for browsing; API request packs from EUR 100 per 1,000 lookups.
Free site lookups
- The definitive public source for web-technology market share statistics, updated daily.
- Coverage across 24 distinct technology categories with longitudinal trend data.
- API pricing is straightforward and per-lookup; no seat-based gotchas.
- Trusted by researchers and academics for citable web-technology statistics.
- Not built for sales prospecting; no lead-list export, no contact data, no firmographics.
- Site lookups expose the technologies but not the buying signal underneath them.
- API is cheap per call but lacks the workflow tooling BuiltWith and Wappalyzer bundle.
Pick W3Techs when the job is research and stats, not prospecting. For lead generation workflows it's the wrong tool; for understanding the broader market it's the right one.
See W3Techs's tech stack →Best for: Developers and engineering leaders researching what tools peer companies have chosen and why.
Free for community profiles; Team plan $500/month; Enterprise sales-led.
Free community tier
- Community-curated tech stacks include the reasoning behind choices, not just the detection.
- Includes backend tooling, devops, and internal stack components BuiltWith never sees.
- Free tier is genuinely useful for due-diligence on what's modern at any company.
- Now owned by FOSSA, which has stabilized the enterprise-side product roadmap.
- Coverage depends on companies self-reporting, so SMB and stealth companies are sparse.
- Not a lookup-by-domain tool the way BuiltWith is; this is profile-led, not detection-led.
- Data freshness varies wildly; some profiles are years out of date.
Use StackShare alongside BuiltWith, not instead of it. The qualitative 'why this stack' layer is valuable, but it's a discovery tool, not a detection tool.
See StackShare's tech stack →Best for: Anyone who needs a free, lightweight browser-extension tech check without an account.
Free.
Free forever
- Genuinely free, no account required for the core extension lookup.
- Detects WordPress plugins, themes, and fonts that other extensions miss.
- Lightweight and fast; doesn't slow down browsing or leak telemetry visibly.
- Follow-website feature notifies on tech-stack changes for accounts you care about.
- No bulk lookup, no API, no lead-list export - it is strictly a single-site tool.
- Frontend-only like Wappalyzer's extension; same blind spots.
- Development cadence is slow compared with Wappalyzer's commercial roadmap.
Pick WhatRuns when one-off site checks are your only need and you want zero friction. For any team workflow it is not a BuiltWith replacement.
See WhatRuns's tech stack →Best for: Teams using BuiltWith for sales intent who want a leading-indicator signal that fires before any technographics tool can.
Free tier (5,000 requests/month); paid plans from $49/month.
Free, no credit card
- Different category entirely - hiring-signal intent fires 1-2 quarters before a tech-detection tool will surface the same buying decision.
- Pairs with BuiltWith (or any tech-detection tool) rather than replacing it.
- Self-serve, API-first, indie-priced - matches the onboarding shape of Wappalyzer and TheirStack.
- Sees the team being assembled around the website, not just the technologies on the website.
- Not a tech-stack detector - if you need to know what CMS a site runs today, this is the wrong tool.
- Hiring signal is a leading indicator; 1-2 quarter lead time does not fit BOFU triggers.
- Best paired with a real tech-detection tool, not used in place of one.
Listed last because JobsPipe is NOT a direct BuiltWith replacement - we are the team-side signal, not the website-side signal. If your real question is 'who is about to buy/build X', hiring intent answers that earlier than any tech-detection tool. If your question is 'what does this site run today', use one of the other nine.
FAQ
What's the closest free alternative to BuiltWith?+
For one-off site checks, the Wappalyzer browser extension and WhatRuns are both free and accurate. For free bulk-style lookups against a small list, TheirStack's free tier and Bloomberry's free account both give you more than BuiltWith's free tier does. W3Techs is free for browsing if your question is statistical rather than account-specific. There is no free BuiltWith equivalent that does unlimited bulk lookups with lead-list export - that workflow is paid everywhere.
Is Wappalyzer enough or do you really need BuiltWith?+
For most teams Wappalyzer is enough. The detection coverage is comparable for frontend technologies, the API is clean, and paid plans run roughly 30% cheaper than BuiltWith for equivalent volume. Stay on BuiltWith if you specifically need its historical trend data or if non-technical stakeholders trust the BuiltWith brand on reports. Otherwise the price difference is hard to justify.
Why is BuiltWith so expensive?+
Two reasons. First, BuiltWith was the category-defining product for a decade and the pricing reflects sustained brand premium rather than current feature parity. Second, the Basic plan's 2-technology cap pushes most serious users into Pro at $495/month, which is the real price point. Competitors like Wappalyzer, Bloomberry, and TheirStack have closed the feature gap while keeping pricing lower, so the premium is increasingly about brand recognition.
What does TheirStack do that BuiltWith doesn't?+
TheirStack derives the tech stack from job postings rather than scraping the live website. That means it sees backend technologies, internal tooling, and stacks that never appear in frontend JavaScript - things BuiltWith fundamentally cannot detect. The tradeoff is that TheirStack only covers companies that actually post jobs, and the signal lags reality by a hiring cycle. Pair TheirStack with Wappalyzer for full coverage at a price below BuiltWith Basic.
What does Bloomberry detect that BuiltWith and Wappalyzer miss?+
Bloomberry uses DNS records, certificate transparency logs, and subprocessor list changes to identify tools that don't embed JavaScript on the public site. That catches CRMs, ERPs, security platforms, finance tools, and devops infrastructure - the entire category of backoffice software that frontend scrapers cannot see. If your buyers care about more than what the marketing site runs, Bloomberry is the most novel alternative on this list.
When should I pay for HG Insights instead of BuiltWith?+
When you need install-base data, IT spend projections, contract renewal intelligence, and behind-the-firewall coverage at account-level - and when budget for a $75k/year contract is real. For pure tech detection HG Insights is overkill at 50-200x the price. The right HG Insights buyer already has a defined enterprise GTM motion and a CRM that needs technographic enrichment baked in.
Why is JobsPipe in a tech-stack alternatives list?+
Because BuiltWith evaluators are often actually shopping for buying-intent signal, not tech detection. Tech detection answers 'what does this company run today.' Hiring intent answers 'what is this company about to buy.' These are different signals at different funnel stages, and most teams realize 12 months in that they needed the second one. JobsPipe is here at #10 with the explicit caveat that we are NOT a direct BuiltWith replacement - we are the wildcard for evaluators whose real gap is timing, not detection.
Can I run BuiltWith and JobsPipe together?+
Yes, and that is the recommended pairing for sales-driven motions. BuiltWith (or Wappalyzer) tells you what an account runs today; JobsPipe tells you what they are hiring to build or adopt next. The first answers segmentation questions, the second triggers outreach timing. Most teams that pair them describe it as the cheapest meaningful upgrade to their intent stack.
Methodology
Vendors evaluated on the same five axes. JobsPipe is the publisher; we’ve listed ourselves at #10, last, and called out that we’re not a tech-detection replacement.
- Data depth: detection breadth across frontend, backend, CRM/ERP, and behind-the-firewall categories - benchmarked against publicly available reviews and customer-reported results.
- Pricing transparency: whether real prices are public, presence of a meaningful free or self-serve trial path, and how friendly the credit-expiry terms are.
- Lookup mechanism: single-site UI vs bulk export vs API access, including how engineer-friendly the API surface is for enrichment workflows.
- Data freshness: how often the underlying detection runs and whether the vendor exposes that schedule to users.
- Signal type: whether the vendor detects current state (frontend scrapes, DNS signals) or leading-indicator buying intent (hiring activity), and where the gap sits relative to BuiltWith's frontend-only baseline.
Add hiring-signal intent alongside BuiltWith. Free tier, 5,000 requests/month, no credit card.
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