Bitcoin
Toolkit.
Four free Bitcoin web apps. Real-time price conversion, holder rankings, watch-only address monitoring, and nLockTime inheritance planning. No sign-up. No tracking. Runs in your browser.
Four Bitcoin apps. One toolkit. Zero custody.
Every app runs entirely in your browser. No accounts, no tracking, no servers storing your data. Just open-source Bitcoin tools that do what they say.
Bitcoin Calculator
Real-time BTC, Sats, and USD conversion.
Convert between Bitcoin, Satoshis, and US Dollars with live market data. The calculator connects to three independent price APIs with automatic failover, so you always have the latest conversion rate even if one source goes down.
- Three-tier API fallback: CoinGecko → CoinCap → Blockchain.info
- Instant bi-directional conversion as you type
- Market stats: 24h change, market cap, Bitcoin dominance
- Mobile-first with haptic feedback simulation
- Price refresh every 30 seconds, fully client-side
Bitcoin Ranking Stats
Where do you rank among Bitcoin holders?
Enter your Bitcoin balance and instantly see where you stand among global holders. The stacking leaderboard lets you compete with other Bitcoiners, track your sats accumulation over time, and rank up through motivational tiers as you stack.
- Global holder ranking by percentile
- Competitive stacking leaderboard
- Motivational tiers from Pleb to Whale
- Track sats accumulation progress over time
- No login required, your data stays local
BitWatch
Watch-only Bitcoin address monitoring.
Monitor any public Bitcoin address without touching private keys. BitWatch shows balances, transaction history, and activity alerts in a clean portfolio view. Since every Bitcoin transaction is public on the blockchain, BitWatch simply surfaces that data in an organized dashboard.
- Monitor any Bitcoin address — yours or public
- Aggregated portfolio: total BTC + USD value
- Transaction activity alerts when balances change
- Categorize addresses: Savings, Cold Storage, Hot Wallet
- Backup and restore your address list
- Zero custody risk — read-only, no private keys ever
TimeLocked
nLockTime inheritance vault. Experimental.
Explore Bitcoin's built-in time-locking capabilities. TimeLocked demonstrates how nLockTime transactions work — transactions that remain invalid until a future block height is reached. Useful for understanding inheritance planning concepts, but strictly experimental.
- Set lock by block height or future timestamp
- Generate raw transaction hex for offline review
- Educational: learn how nLockTime works at the protocol level
- No private keys required for demo mode
- ⚠️ Experimental only — never use with real funds
Built for Bitcoiners who verify, not trust.
Every tool in the Bitcoin Toolkit runs entirely in your browser. No servers store your data, no accounts track your activity, and no private keys are ever requested or handled.
100% client-side
All calculations, conversions, and monitoring run locally in your browser. The only external calls are to public price APIs and blockchain explorers over HTTPS.
No private keys. Ever.
None of the four apps ask for, handle, or store private keys or seed phrases. BitWatch is read-only. TimeLocked is educational. Your keys stay with you.
Open source on GitHub
Every line of code is GPL-licensed and publicly auditable. Read the source, fork it, run it locally. Don't trust — verify.
Frequently asked questions about the Bitcoin Toolkit.
The Bitcoin Toolkit is a suite of four free, open-source web applications: a real-time BTC price calculator, a Bitcoin holder ranking system, BitWatch (watch-only address monitor), and TimeLocked (nLockTime inheritance vault). All apps run at sats.network.
No. All four apps run entirely in your browser. No personal information, Bitcoin addresses, or calculations are stored on any server. Price data is fetched from public APIs over HTTPS.
The calculator uses a three-tier API fallback system: CoinGecko (primary), CoinCap (secondary), and Blockchain.info (tertiary). If one source is down, the next takes over automatically.
BitWatch is a read-only tool that displays public blockchain data. It never asks for or stores private keys. No funds can be moved or compromised. It simply reads what is already public on the Bitcoin blockchain.
No. TimeLocked is an experimental educational tool only. Never use it with real private keys, seed phrases, or actual Bitcoin funds. Real inheritance planning requires audited solutions with multisig and redundant offline backups.
Yes. All four apps are completely free, with no premium tiers, no ads, and no sign-up required. The source code is GPL-licensed and available on GitHub.
The Bitcoin Toolkit is built by wBuild.dev, the same team behind wAnswers, Affiliate Links Sidebar, and AI Reply Assistant. All projects are open-source and GPL-licensed.
Stack sats. Stay sovereign.
Free forever. Open source. No sign-up. Four Bitcoin tools built for people who believe in self-custody.