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Ian Coleman
Convert BIP39 mnemonic phrases with Ian Coleman's browser-based code converter and review its source code.

About Ian Coleman
Ian Coleman's website is a personal index of browser-based cryptography and reference tools. The directory description highlights a BIP39 mnemonic phrase converter, and the homepage lists it alongside other tools, including a multisig tool, a Shamir Secret Sharing tool, a SLIP39 tool, and a CIA World Factbook API.
Several listed tools link to a site and a source code page. The homepage gives only tool names and links, so this entry does not describe how each tool works or what data it handles. Pricing is unknown.
Key features
- BIP39 mnemonic code converter
- Multisig tool
- Bitcoin key compression tool
- Shamir Secret Sharing scheme tool and Shamir39 tool
- CIA World Factbook API with data explorer
- BLS threshold crypto and EIP2333 BLS12-381 key generator tools
- Several listed tools link to their source code
- Some tools link to a draft specification, such as the Shamir39 tool
Ian Coleman at a glance
- Website
- iancoleman.io
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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