Security Tools
Bitcoin, OpenPGP, and Bitcointalk utilities - pick a tool to open it.

Bitcoin Learning Sandbox
Simulate wallets, UTXOs, mempool fees, block mining, and security lessons - no node required.
Bitcoin Signature Verifier
Verify BIP-137 message signatures for legacy, SegWit, and Bitcoin Core signed blocks.
PGP Signature Verifier
Validate OpenPGP clearsigned messages against an ASCII-armored public key.
Bitcointalk Forum Dossier
One lookup for a forum user: BPIP ranks, Loyce ban/DT1 signals, and BitList posts + BTC addresses.
Fee Estimator & RBF/CPFP Lab
Explore vsize, feerates, mempool position, RBF bumps, and CPFP child packages - no wallet required.
Address & Script Decoder
Paste a Bitcoin address or script hex - see P2PKH, P2WPKH, P2SH breakdown, witness data, and fee/privacy notes.
BIP39 Checksum Lab
Validate seed phrase checksums offline - learn backup hygiene without generating or storing keys.
PSBT Inspector
Read-only Partially Signed Bitcoin Transaction decoder - inputs, outputs, partial sigs, sighash types.
Flow Explorer
Multi-chain flow map (BTC, ERC-20, BEP-20, TRC-20) - USD values, entity labels, click-to-expand hops.
sBTC Faucet
Automatic Bitcoin Signet faucet - request a small sBTC payout to a Signet address.
Forum Post Checker
Paste a Bitcointalk post and check addresses, Bitcoin signatures, PGP blocks, and BitList hits.
Address Check
One card for script type, checksum, public label, BitList posts, and a short activity note.
Transaction Reader
Read a transaction id or raw hex: inputs, outputs, fee, locktime, and RBF.
OP_RETURN Reader
Read a message stored in an OP_RETURN output.
Payment Link Reader
Read a bitcoin: link for the address, amount, and label. No wallet.