Free Bitcoin Whale Tracker Developer Tools - No Signup Required

Looking for free crypto and developer tools that actually work? No signup, no paywall, no BS. Just tools.

🐋 Bitcoin Whale Tracker

Track the largest BTC wallets in real-time. See Binance, Kraken, Coinbase, and Bitfinex cold wallet balances. Free JSON API included.

→ Live Whale Tracker

🔗 SatsLink — URL Shortener

Free link shortener with click analytics and API access. No account needed. Create short links programmatically.

→ Shorten a Link

📈 Crypto Arbitrage Scanner

Real-time cross-exchange price comparison for BTC, ETH, SOL, XMR, and DOGE across 7 exchanges. Spot price discrepancies instantly.

→ Check Arb Opportunities

📊 Free Datasets

Download daily-updated datasets: Remote jobs (160+ listings), GitHub trending repos, security advisories (CVEs), crypto Fear & Greed index, and arbitrage opportunities.

→ Browse Data Store

🔧 QR Code API

Generate QR codes via REST API. Free tier: 25/day. Pro tier available via Lightning payment. Supports custom colors, sizes, and formats.

→ QR Code Generator

🚰 Crypto Faucet Directory

Curated list of working crypto faucets in 2026. BTC, ETH, SOL, XMR - all verified and updated monthly.

→ Faucet Directory

🛠️ More Developer Tools

• JWT Debugger
• Regex Tester
• Cron Expression Explainer
• WHOIS Lookup
• Privacy Fingerprint Check

All Free. All Open API. No Signup.

Everything runs on a single VPS. If you find these tools useful, consider sending a Lightning tip to devtoolkit@coinos.io ⚡