StateInit builder and decoder

Decode a StateInit, or pull it out of a deploy message, and see its address, code (wallet version, library reference), data, libraries and flags. Or build one from code, data, libraries, tick/tock and fixed_prefix_length, and copy the base64 for a TonConnect deploy message.

Runs locally in your browserFor developers

Nothing you type here is sent anywhere. You can disconnect from the internet and it still works.

Related tools

Contract address from StateInitCompute a contract address before deploy from its StateInit or code + initial data. Local only Dictionary (HashmapE) encoder and decoderDecode a TON dictionary cell to JSON, or build one from JSON. Jetton metadata, airdrops, configs. Local only Library cell resolverFind library cells in contract code and fetch the real code they point to.BOC converterConvert a bag of cells between base64, base64url, hex and .boc files, and inspect its header. Local only Cell layout calculatorCount the bits and refs of a cell layout, check the 1023-bit / 4-ref limits and estimate fees. Local only Cell tree viewerExplore a BOC as a tree: every cell's bits, refs, type, level, depth and hashes. Local only Merkle proof builder and verifierVerify a TON Merkle proof against a root hash, see what it proves, or build proofs for dict keys. Local only