Linkheft: Free Domain Authority Checker
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Domain authority 0-100, web rank & 4-month trend, open data
CyberMax free tools
Our best free browser tools: domain authority, ZIP lookup, keyword ideas, company to domain, HTML to PDF, speech-to-text, shorts.
Note Free domain authority 0-100 checker. Whole lists by API: Linkheft $5 pack, 25,000 lookups, never expires: https://data.cybermaxtools.com/buy/linkheft-api-pack?s=hfc-free-domain-authority-checker
Ziplore: US ZIP Code Lookup & Radius Search
📍Free ZIP lookup with county, time zone & income
Note Free US ZIP lookup and radius search. By API: Ziplore $5 for 12,000 calls, no expiry: https://data.cybermaxtools.com/buy/st-ziplore-api-pack?s=hfc-free-zip-code-lookup
Hearlark — Private Audio Transcription
🤫Free: private speech-to-text in your browser (Whisper)
Note Free private speech-to-text in your browser (Whisper). Turn recordings into captioned shorts with Clipwhit Pro, $12/month: https://data.cybermaxtools.com/buy/st-clipwhit-pro-monthly?s=hfc-free-hushscribe
Clipwhit — Paste a Link or Drop a Video → Shorts
✂Free: paste a link or drop a video → captioned 9:16 shorts
Note Free video or podcast to captioned 9:16 shorts, in your browser. Clipwhit Pro, $12/month: unlimited clips, 1080p, no mark: https://data.cybermaxtools.com/buy/st-clipwhit-pro-monthly?s=hfc-free-clipwhit
Keyfern: What People Search (Keyword Ideas)
🌿Free keyword ideas from Google/YouTube autocomplete
Note Free keyword ideas from autocomplete. Your own seeds, any country: Keyfern on Apify, pay per result: https://data.cybermaxtools.com/buy/keyfern?s=hfc-free-what-people-search
Namewhere: Company Name to Domain Finder
🔎Company names to official website domains with evidence
Note Company name to official domain, with evidence. Namewhere API: 25 free a day, $5 for 5,000: https://data.cybermaxtools.com/buy/namewhere-api?s=hfc-free-company-name-to-domain
Printwren: Docs Pages as PDFs
📄Free: docs pages converted to PDF by an HTML/URL to PDF API
Note HTML/URL to PDF samples. Printwren API: 20 free a day, $10 for 1,000 (no expiry) or $9/month for 750: https://data.cybermaxtools.com/buy/printwren-api?s=hfc-free-docs-pages-as-pdfs
Sumbloom — Daily Number Puzzle
🌸Free daily math puzzle: 6 numbers, 5 targets
Note Free daily number puzzle. Printable Sumbloom puzzle book, 120 puzzles with answers: https://data.cybermaxtools.com/buy/sumbloom-book?s=hfc-free-sumbloom
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CyberMax: Free Datasets, Data APIs & MCP Servers
🧭Free open datasets, data APIs and MCP servers for AI agents
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Tallymoor DevEx Calculator
🧮Robux to USD at Roblox's 2026 DevEx rates, free
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CyberMax Web Toys
🎲Free: website roast, brand name vibe check, dev type quiz
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CyberMax Work Apps (MCP)
🧰Invoices, Excel, reports, tariffs, CVEs in ChatGPT