The index
Everything we have made.
Here is the whole index — what runs in your browser, what runs in the cloud, what we wrote, and what you can fork.
- 27browser apps and games
- 141cloud tools
- 27free guides
- 120open repositories
Free · runs in your browser
Games and apps you can use right now
27 of our apps run embedded on our own arcade page — no account, no install, nothing to pay. Plus a tool built into this site, and a course builder.
On the Apify marketplace
141 cloud tools we built
APIs that do one job each — convert a file, audit a page, parse a feed, check a domain. They run on someone else's marketplace rather than here, they are metered by the run, and the cheapest is $0.0004 per event. Together they ran 4485 times in the last 30 days. Most of that is the marketplace's own automated test of each tool, about one run a day; 9 of them ran clearly more than that.
Said plainly, because the rest of this site is free and this section is not: these are an experiment, not a business. Everything on broke2builtai.com itself is free to use, and nothing here is required to use anything else we make.
Developer tools 78
- AMP Checker - Validate AMP Markup & amphtml Links
Check a page's AMP setup: is it AMP, the linked amphtml URL, required AMP markup, and validation issues.
- App Store Keywords Scraper
See which iOS apps rank for any App Store keyword, in search order: rank, app, seller, price, rating and rating count, category, version, size and update date.
- arXiv Papers Scraper
Search arXiv and get one row per paper: title, full abstract, every author, categories, the bare arXiv id plus its version, a direct PDF link, DOI and journal reference.
- Barcode Generator
Barcode PNGs by API: QR, Code128, EAN-13/8, UPC-A/E, ITF-14, DataMatrix, PDF417, Aztec + more (bwip-js engine).
- Base64 Encode / Decode
Encode or decode Base64 with auto-detection and content-type sniffing (PNG/JPEG/PDF/JSON/text).
- Broken Image Checker
Scan a page for broken images: every img src/srcset HEAD-checked for 404s/errors/non-image types, plus missing-alt count.
- Broken Link Checker
Broken link checker: give it a start URL, it checks every link on the page and returns the broken ones as JSON — link URL and HTTP status code.
- Charset Checker
Verify a page's character-encoding: HTTP vs meta charset, http-equiv, XML, BOM, and mismatch/mojibake risks.
- Clinical Trials Scraper
Search ClinicalTrials.gov and get one row per trial: NCT id, status, phase, enrollment, sponsor, conditions, interventions, eligibility and site countries.
- Complete Site Audit
Full website health audit in one call: SEO, security headers, social tags, crawlability, and tech stack, scored into an A–F grade with one prioritized issue list.
- Cookie Scanner
Scan a page's cookies: each Set-Cookie parsed with Secure/HttpOnly/SameSite/expiry, third-party & tracker flags, GDPR category, security issues.
- Cron Expression Parser
Validate up to 50 cron expressions per run: plain-English description + timezone-aware next fire times (DST-correct, any IANA zone), 5/6-field, @shortcuts, names, dom/dow OR rule.
- CSV Profiler
Profile any CSV by URL or paste: per-column types, null rates, unique counts, min/max/mean/median/stddev, top values, quality warnings (mostly-null, mixed-type, constants, identifiers).
- CSV to Excel Converter
Convert CSV files to Excel spreadsheets by URL - proper quoted-field parsing, custom delimiters, headers detected, column widths set.
- CSV to JSON Converter
Convert CSV to JSON via API - from a file URL or pasted raw text (fields: url or csv).
- dev.to Articles Scraper
Scrape dev.to by tag or author: title, author, organization, publish date, reactions, comments, a combined engagement total, reading time, tag list and the AI-disclosure label.
- DMARC Record Checker
Check DMARC for up to 200 domains per run: policy, pct, rua/ruf reports, grade (enforced/monitor/missing) and plain-English issues.
- DNS Records Lookup
Look up every DNS record type for a domain in one call.
- Domain Availability Checker
Check if a domain is available to register.
- Fake Data Generator
Synthetic test datasets from your schema: 20 field types, persona-coherent rows (email matches the row's name), seed = fully deterministic reruns, safe demo-only email domains.
- Favicon Extractor
Find every icon a site declares - link icons, apple-touch, mask-icon, web-manifest icons, favicon.ico fallback - with sizes/types and a best-icon pick.
- Favicon Fetcher
Fetch any website's favicon and get it back as a base64 data URI plus a hosted PNG/ICO file URL, with content-type and real pixel dimensions.
- GitHub User Scraper
Look up GitHub users by login or profile URL, or search by location, language and follower count.
- Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 and HMAC hashes of text or a fetched file, in hex and base64 - all algorithms in one call.
- HTML Comment Extractor
Extract HTML comments from any page and flag sensitive ones - TODO/FIXME, passwords, API keys, tokens, internal notes.
- HTML Entity Encoder & Decoder
Encode text to HTML entities or decode entities back, with auto-direction - named, decimal & hex references, emoji-safe.
- HTML to Markdown Converter
Convert a page (by URL) or raw HTML to clean GitHub-Flavored Markdown - headings, links, fenced code, tables, strikethrough.
- HTTP Headers Inspector
Fetch every HTTP response header of any URL, plus a security-header analysis (HSTS, CSP, X-Frame-Options) with an A-F grade and server fingerprint.
- Image Converter
Convert an image from PNG to JPEG, or to WebP, AVIF, PNG, GIF or TIFF, with optional resizing, quality control and metadata stripping.
- Image Extractor
Extract every image on a web page as JSON: absolute src, alt text, width/height, loading, srcset, plus og:image and twitter:image.
- Image Metadata & EXIF Extractor
Read any image URL and get dimensions, format, camera make/model, lens, ISO, shutter, aperture, focal length, capture date and GPS coordinates with a map link.
- JSON Schema Inferer
Infer a draft-07 JSON Schema from any JSON URL or raw sample: types, required fields, email/date-time/uuid/uri formats, small enums, merged array-item schemas.
- JSON to CSV Converter
Convert a JSON file by URL into a downloadable CSV - column union across records, proper quoting, Excel-friendly CRLF, one CSV per array for object-of-arrays input.
- JSON to Excel Converter
Convert JSON to an Excel spreadsheet by URL - arrays of records become clean XLSX sheets with headers, column widths set, one sheet per key for object-of-arrays.
- JSONPath Extractor
Evaluate up to 50 JSONPath expressions against pasted JSON or a URL: every match returned with its JSON Pointer and value, filters/wildcards/recursive descent supported (jsonpath-plus 10.3).
- JWT Decoder - Header, Claims, Expiry (Decode Only, No Keys)
Decode up to 50 JWTs per run: header, payload, iss/sub/aud, humanized iat/exp/nbf, expiry verdict, security warnings (alg=none, no-expiry, sensitive claims).
- Link Extractor
Extract every link from any webpage. Input: a list of page URLs.
- Markdown to HTML Converter
Convert Markdown to safe GitHub-flavored HTML by URL or text - anchored headings, table of contents, script/iframe stripping.
- Markdown TOC Generator
Paste-ready TOC for any markdown doc or URL: GitHub-compatible anchors, nested indentation, duplicate headings deduped, code fences ignored, setext +
- Number Base Converter
Radix conversion that never corrupts big values: BigInt throughout, so 2^64-1 converts exactly (floats fail past 2^53).
- Open Library Books Scraper
Search Open Library by title, author, subject or ISBN and get one row per work: authors, first publish year, edition count, a real ISBN-13, subjects,
- Page Weight Analyzer
Estimate page weight and get performance hints from one fetch (no headless): HTML/transfer size, script/style/image/font counts, render-blocking, fixes.
- Password Strength Analyzer
Analyze password strength — entropy in bits, crack-time estimate, and specific weaknesses (common passwords, patterns, repeats).
- PDF Metadata Extractor
Extract a PDF's metadata by URL: page count, version, title, author, producer, keywords, dates and a text preview, without full parsing.
- Print Stylesheet Checker
Check if a page is print-friendly: print stylesheets, @media print blocks, inline print rules, and page-break hints.
- Profanity Detector
Screen up to 1,000 texts per run against a tiered profanity wordlist with obfuscation heuristics (leet, spacing, partial masks) — severity, exact posi
- Public Holidays Scraper
Public holidays for 200+ countries and any year from 1975 to 2075: date, weekday, weekend flag, local and English names, nationwide vs regional with the subdivision list.
- PubMed Articles Scraper
Search PubMed and get one row per article: title, full author list, journal, volume/issue/pages, DOI with a resolvable link, PMCID, publication types and languages.
- QR Code Generator API
Generate QR codes via API. Input: content (URL, text, WiFi, vCard and more) plus optional size, margin, colors, and error-correction level.
- Redirect Chain Checker
Trace any URL redirect chain: every 301/302 hop with status code and Location, the final destination, hop count, plus redirect loops, long chains, insecure http hops and 302-vs-301 issues.
- Regex Tester
Test up to 50 regex patterns against sample text by API: all matches with indexes + named groups, plain-English pattern explanation, ReDoS heuristics
- RSS Feed Finder
Discover every feed a site exposes: declared link rel=alternate RSS/Atom/JSON plus common feed paths, validated & de-duplicated.
- RSS Feed Parser
RSS feed parser for developers and AI agents: pass any RSS or Atom feed URL as input and get back clean, structured JSON items (title, link, date, and other feed fields).
- Security Headers Checker
Security headers checker for any URL: pass a list of URLs, get one JSON record per URL with the observed CSP, HSTS, X-Frame-Options and related header
- Sentiment Analysis API
Sentiment analysis for any text via API. Input: text string(s).
- SEO Audit Tool
SEO audit for any URL or whole site: crawl mode finds redirect chains, broken links, duplicate titles; page mode checks title/meta, headings, schema, robots.txt, sitemap, canonical.
- SPF Record Checker
Validate SPF for up to 200 domains per run: parsed mechanisms, DNS lookup count vs the RFC 7208 limit of 10, all-qualifier and plain-English issues.
- SSL Certificate Checker
Live TLS handshake for up to 200 hosts per run: issuer, SANs, days-to-expiry, full chain walk, negotiated protocol, self-signed/expired diagnosis with exact error.
- Stack Overflow Scraper
Search Stack Overflow or any Stack Exchange site and get one row per question: score, answer count, views, tags, author reputation and ISO dates.
- Subdomain Finder
Enumerate a domain's subdomains from Certificate Transparency logs, with an optional live DNS resolve.
- Table Extractor
Table extractor for webpages: pass a URL and get every HTML data table back as structured rows — JSON via the API or dataset, CSV/Excel via one-click export.
- Text Case Converter
Round-trip case conversion done right: camelCase, PascalCase, snake_case, kebab, CONSTANT_CASE, Title, Sentence, dot.case, slug — with correct acronym
- Text Entity Extractor
Regex extraction of 11 structured entity types from up to 100 texts per run: emails, phones, URLs, IPs, dates, times, money, percentages, hashtags, me
- Text Statistics API
Exact counts for any text: characters with and without spaces, words, unique words, sentences, paragraphs, syllables, longest words, per-word and per-sentence averages, and lexical diversity.
- Timestamp Converter
Any timestamp shape in (unix s/ms auto-detected, ISO, "now") — every form out: unix, ISO 8601, RFC 2822, DST-correct IANA timezone rendering, real ISO
- Unit Converter
Physical-unit conversion by API: kg/kilos/kilogramme all resolve, temperature uses real formulas (212F = exactly 100C, release-tested), every result i
- User-Agent Parser
Parse up to 1,000 User-Agent strings per run: browser + version, OS, device, engine, CPU, and isBot verdict covering search crawlers, AI crawlers (GPT
- UUID Generator
Generate up to 10,000 ids per batch: UUID v4, time-sortable UUID v7, ULID, NanoID, 8-char short codes — CSPRNG-backed, several kinds per run.
- Web Form Extractor
Extract all forms from any page with action, method, enctype and every field (name/type), plus password/email/file flags.
- Webpage Metadata Extractor
Extract webpage metadata from any URL. Input a URL, get one JSON record with the page title, meta tags, OpenGraph, Twitter Card, and JSON-LD structured data.
- Website Color Palette Extractor
Extract a website's color palette - hex/rgb/hsl from styles and theme-color meta - normalized and ranked by frequency.
- Website Font Detector
Detect the fonts a site uses: @font-face + web-font files, font-family stacks, and Google/Adobe/self-hosted/system sources.
- Website Screenshot
Take a full page screenshot of a website.
- Website Technology Detector API
Detect what a website is built with via API.
- Website Uptime Checker
Check whether a website is up or down — a health check and uptime monitor without a subscription.
- WHOIS Lookup API
Look up who owns a domain and when it expires.
- XML to JSON Converter
Convert any well-formed XML by URL into clean JSON - attributes preserved, repeated elements as arrays, root element reported.
- YAML to JSON Converter
Convert YAML into JSON, or JSON back into YAML, from pasted text or a file URL.
SEO 21
- AI Overview Visibility Tracker
See which domains Google cites in its AI Overview for your keywords, and the exact passage it quoted from each.
- AI Readability Checker
Audit a site the way AI crawlers see it: robots.txt rules per bot (GPTBot, ClaudeBot, PerplexityBot), real per-bot fetches, and how much text exists before JavaScript runs.
- Core Web Vitals & PageSpeed Insights Checker
Bulk Core Web Vitals and PageSpeed Insights reports from Google's official API: performance score, lab LCP, CLS, TBT, FCP and Speed Index, real-user C
- Domain Age Checker
Input: one domain or up to 100 domains. Output per domain: the WHOIS registration date, exact age in days and years, and a maturity class (new under 1y, established 1-5y, mature 5y+).
- Heading Structure Outliner
Extract a page's H1-H6 heading structure as an ordered outline with SEO issue flags (missing/multiple H1, skipped levels).
- Meta Robots Auditor
Indexability verdict per URL from ALL the signals: meta robots, meta googlebot, the X-Robots-Tag header (the one checkers miss), canonical + self-canonical check — with the exact reasons.
- Mixed Content Checker
Find insecure http:// resources on HTTPS pages — the mixed content browsers block and that breaks the padlock.
- Mobile-Friendly Checker
Batch mobile-friendliness by API: viewport meta fully parsed, @media in inline AND linked CSS, srcset/picture, fixed widths, tiny fonts, Flash, touch
- Open Graph & Twitter Card Extractor
Extract Open Graph, Twitter Card, article, fb & Pinterest tags plus per-network share previews (Facebook/Twitter/LinkedIn) from any URL.
- Outbound Link Auditor
Audit a page's external links with evidence per link: rel/nofollow/sponsored flags, unsafe target=_blank (tabnabbing), non-HTTPS, live HEAD/GET status probes + redirect resolution.
- Robots Rule Tester
Test URLs against robots.txt with real Google semantics: longest-match, Allow wins ties, UA group selection (test Googlebot, GPTBot, ClaudeBot...), wildcards.
- robots.txt Analyzer
Parse and audit any site's robots.txt in one call: user-agent groups, allow/disallow rules, declared sitemaps, and crawl-block issues like an accidental site-wide Disallow.
- Sitemap Analyzer
Analyze any XML sitemap in one call: auto-discovery via robots.txt, URL counts, sitemapindex vs urlset detection, size, lastmod and HTTPS issue flags.
- Sitemap URL Extractor
Get every URL out of a sitemap.xml, a sitemap index (followed recursively), or a bare domain via robots.txt.
- Slug Generator
Bulk URL slugs with real transliteration: diacritics, Cyrillic, Greek, symbol words (& -> and), batch-unique suffixes on collisions, custom separator + maxLength.
- Social Preview Checker
See how any URL looks when shared on social: the rendered preview (title, description, image) from Open Graph and Twitter Card tags, with missing-tag issues flagged.
- Structured Data Extractor
Extract all structured data from any page - JSON-LD, Microdata, and RDFa - plus the schema.org types found.
- Text Readability Analyzer
Score up to 100 texts per run with Flesch, Flesch-Kincaid, Gunning Fog, SMOG, ARI and Coleman-Liau + consensus grade, audience label and concrete fix-it tips.
- Webpage Keyword Density
Keyword density of any URL's MAIN content (nav/footer boilerplate stripped first): ranked unigrams + bigrams + trigrams with density %, plus 1-100 word-cloud weights.
- Webpage Readability Grade
Grade any URL's readability the honest way: main content extracted first (nav/footer/sidebar boilerplate stripped, <main>/<article> preferred), then F
- White-Label SEO Audit Report (HTML)
Crawl a site and get back a finished audit report with your agency name and brand colour on it.
Social 9
- AI Video Clipper
Turn a long YouTube video, podcast or interview into finished vertical Shorts, Reels and TikToks.
- Bluesky Posts Scraper
Scrape any public Bluesky account: post text, ISO dates, likes, reposts, replies, quotes and a combined engagement total, one row per post.
- Google Play Reviews Scraper
Scrape Google Play Store app reviews: star rating, review text, thumbs-up, app version, date and the developer's reply, one row per review.
- Instagram Transcript Scraper
Turn Instagram Reel links into spoken-word transcripts with Whisper, plus SRT subtitles, the caption, views, likes and creator.
- Steam Reviews Scraper
Scrape Steam game reviews: recommended or not, full text, helpful and funny votes, and the author's playtime AT THE TIME OF REVIEW in hours.
- Telegram Channel Scraper
Scrape any public Telegram channel: post text, publish date, view counts, photo/video flags, forward and reply markers, and a direct link.
- TikTok Video Transcript & Captions Extractor
Get the transcript of any TikTok video from its native captions: clean text, timestamps, an SRT subtitle file and the video's stats.
- Tumblr Posts Scraper
Scrape any public Tumblr blog: post title, id, publish date, full tag list, word count and a reblog flag, one row per post.
- YouTube Comments Scraper
Scrape YouTube comments without an API key or cookies: top-level plus replies, top or newest sort, exact like counts (not rounded), author channel IDs, batch videos.
Lead generation 9
- Bulk Email List Verifier
Clean a list before you send it. Catches null-MX domains that guarantee a bounce, keeps implicit-MX domains other tools wrongly delete, flags typo dom
- Bulk Tech Stack Detector
Paste a list of domains and get what each one runs: CMS, framework, hosting, analytics, payments, support widgets.
- Company Enrichment
Turn a list of domains into company profiles: name, description, logo, on-domain emails, phone, address, social profiles and tech stack.
- Disposable Email Detector
Check up to 500 emails/domains per run against a 7,582-domain disposable blocklist + keyword and pattern heuristics, with ~30 legit webmail providers whitelisted.
- Email Deliverability Checker
Audit MX + SPF + DMARC + DKIM (9 selectors) for up to 100 domains per run: weighted 0-100 score, letter grade and copy-paste fixes.
- Email Finder
Find contact emails and phone numbers on any company website.
- Email Finder & Lead Scraper
Find business emails, phone numbers and social links on any website.
- Email Verifier & Validator
Verify email addresses in bulk and clean your list before you send.
- MX Record Checker
Check MX records for up to 200 domains or email addresses per run: priority-sorted exchanges resolved to IPs, RFC 5321 implicit-MX fallback, canReceiveEmail verdict.
Other 7
- Ashby Jobs Scraper
Scrape every open job on any Ashby careers board: title, department, location, remote flag, salary range, apply URL and dates, one row per job.
- Greenhouse Jobs Scraper
Scrape every open job on any Greenhouse careers board: title, department, location, remote flag, salary range, apply URL and dates, one row per job.
- Lever Jobs Scraper
Scrape every open job on any Lever careers board: title, department, location, remote flag, salary range, apply URL and dates, one row per job.
- Recruitee Jobs Scraper
Scrape every open job on any Recruitee careers board: title, department, location, remote flag, salary range, apply URL and dates, one row per job.
- SmartRecruiters Jobs Scraper
Scrape every open job on any SmartRecruiters careers board: title, department, location, remote flag, salary range, apply URL and dates, one row per job.
- Workable Jobs Scraper
Scrape every open job on any Workable careers board: title, department, location, remote flag, salary range, apply URL and dates, one row per job.
- Workday Jobs Scraper
Scrape every open job on any Workday careers site (myworkdayjobs.com): title, location, job type, posted date, salary when stated, apply URL.
AI 7
- Base64 Encoder & Decoder API
Encode text, or any file or image URL, to Base64 plus a ready data: URI.
- Excel to JSON Converter
Convert Excel to JSON by URL. Each .xlsx or .xls spreadsheet comes back as JSON row objects, every sheet or the one you pick, with the header row detected.
- PDF to Text Extractor with OCR
Convert PDF to text by URL. Born-digital PDFs keep their text layer; scanned, image-only pages are read with OCR.
- Speech to Text & Audio Transcription
Speech to text and audio transcription for any audio or video URL: MP3, WAV, M4A, MP4, podcast RSS, Google Drive, Dropbox.
- Text Keyword Extractor
Extract ranked multi-word keyword phrases (RAKE-scored) + top words from up to 200 texts per run.
- Text Language Detector
Detect the language of up to 200 texts per run: ISO 639-3 code, English name, confidence and ranked alternatives (franc trigram model, in-process, texts never leave the run).
- Webpage Text Extractor
Get the readable text off a web page. Pass article or page URLs and get the clean main text back as Markdown or plain text, one result per URL, with ads, navigation and boilerplate stripped.
Video 6
- SRT to VTT Converter
Convert SRT to VTT or VTT to SRT, strip timings to a plain text transcript, and resync cues by any offset.
- YouTube Channel Scraper
Scrape any YouTube channel by @handle, URL or UC id: subscriber count, description, keywords, avatar and RSS, plus every uploaded video with title, URL, duration, views and publish age.
- YouTube Playlist Extractor
Every video in a YouTube playlist as clean JSON: video ID, title, watch URL, channel, duration in seconds, view count and publish age.
- YouTube Search Extractor
Search YouTube without an API key. Videos, channels, playlists, Shorts as JSON.
- YouTube Shorts Scraper
Scrape every YouTube Short a channel has posted, by @handle, URL or UC id: title, Shorts URL, view count and thumbnail, plus the channel's subscriber count, description and RSS.
- YouTube Video Transcript Extractor
Extract a YouTube transcript without an API key: clean text, timestamps, and SRT.
News 2
- Google News Scraper
Search Google News by keyword and get one row per article: clean headline, publisher, link and publish date.
- Substack Posts Scraper
Scrape any Substack newsletter by handle OR custom domain: post title, author, publish date, subtitle, cover image and word count, one row per post.
Automation 1
- RSS Feed Change Monitor
Watch RSS and Atom feeds and get only what changed since the last run.
Other 1
- Shopify Products Scraper
Scrape every product from any Shopify store: title, vendor, type, tags, price range, compare-at/sale price, variants with SKU and stock, images and dates.
Free · open source
120 open repositories
Agents, engines, benchmarks, games, research artifacts and the failures. Fork any of it, change it, ship your own and give it away — that is the point of the place, not a licence footnote.