Base58 Encoder / Decoder
Encode text or bytes to Base58, or decode Base58 back — Bitcoin/IPFS, Ripple (XRP), and Flickr alphabets, with hex byte I/O and leading-zero preservation. Runs entirely in your browser, no server, no sign-up.
What this tool does
Encode any text or bytes to Base58 (the Bitcoin/IPFS alphabet and its common variants), or decode a Base58 string back to the original data — instantly, right in your browser. Nothing is sent to a server: it runs locally, works offline, and needs no sign-up. Pick a Mode, an Alphabet, and a Data format.
Modes
| Mode | What it does |
|---|---|
| encode (default) | Turns your input into a Base58 string — e.g. Hello World! becomes 2NEpo7TZRRrLZSi2U. |
| decode | Reverses it — turns a Base58 string back into the original text or bytes. |
Alphabets
Base58 uses 58 characters and deliberately omits the ambiguous 0 (zero),
O (capital o), I (capital i), and l (lowercase L) so strings are easy to
read and copy. The variants differ only in the order of those 58 characters.
| Alphabet | Used by | Notes |
|---|---|---|
| bitcoin (default) | Bitcoin addresses, IPFS CIDv0, Monero | The original Satoshi alphabet — what most tools mean by "Base58". |
| ripple | XRP Ledger | A permuted order specific to Ripple/XRP. |
| flickr | Flickr short URLs | Lowercase letters come before uppercase. |
Base58 has no padding and preserves leading-zero bytes: each leading
0x00 byte becomes a leading 1 in the output (this is how Bitcoin addresses
keep their leading 1s).
Data format — text or raw bytes
| Format | When encoding | When decoding |
|---|---|---|
| text (default) | Reads the input as UTF-8 text | Renders the bytes as UTF-8 text (errors if they aren't valid UTF-8) |
| hex | Reads the input as a hex byte string (48 65 6c or 0x48656c) | Renders the decoded bytes as hex — use this for binary data |
Switch to hex whenever your data is binary and not readable text — for example a raw public-key hash or a transaction ID.
Examples
| Input | Settings | Output |
|---|---|---|
Hello World! | encode · bitcoin | 2NEpo7TZRRrLZSi2U |
2NEpo7TZRRrLZSi2U | decode · bitcoin | Hello World! |
0x0000287fb4cd | encode · bitcoin · hex | preserves two leading 1s |
516b6fcd0f | encode · bitcoin · hex | ABnLTmg |
FAQ
Is it free and private?
Yes — your input never leaves your device, and it keeps working offline once the page has loaded.
What's the difference from Base64?
Base58 drops the easily-confused
characters (0 O I l) and the + / symbols, so the strings are safe to copy by
hand, double-click-select, and embed in URLs. It's slightly less compact than
Base64 in exchange.
Which alphabet do I want?
Use bitcoin unless you have a reason not to — it's the alphabet used by Bitcoin, IPFS, and most tooling. Pick ripple for XRP Ledger data and flickr for Flickr short URLs.
My decoded output looks garbled.
The bytes probably aren't UTF-8 text. Switch the Data format to hex to see the raw bytes.
Does it do Base58Check?
Not yet — this tool is plain Base58 (no version byte or checksum). For a Bitcoin address you'd add the Base58Check checksum on top.
Why is there no padding option?
Base58 is defined without padding. Leading
zero bytes are preserved as leading 1s instead.
Developer & Automation Access
Run it from the terminal
Same engine as this page, headless — via the gizza CLI:
gizza tool base58-codec "Hello World!"New to the CLI? Get gizza →
Open it by URL
Pre-fill and auto-run this tool with query parameters — the names match the API/CLI:
https://gizza.ai/tools/base58-codec/?input=Hello%20World%21&mode=encode&variant=bitcoin&format=textMachine-readable descriptor: tool.json — title + parameters JSON Schema for agents.