Base58 Decode
100% client-side processing (no server upload). Decode Base58 strings back to text using the Bitcoin/Flickr/Ripple alphabets, with optional data URI prefix stripping, separator/whitespace tolerance, strict validation, and configurable character set decoding.
Features
- Decode Base58 to text with selectable alphabet (Bitcoin, Flickr, Ripple / XRP)
- Optional data URI handling: accept data:*;base58, prefix when decoding
- Optional separator tolerance: ignore spaces, dashes, punctuation, and common whitespace when decoding
- Strict validation option to reject invalid characters (useful for debugging bad inputs)
- Character set control for bytes→text decoding (unsupported charsets fall back to UTF-8)
- Configurable line separator (LF or CRLF) for output formatting
- Live preview for small inputs (auto-decode while you type)
- Line-by-line processing mode for decoding multiple Base58 strings
- 100% client-side processing (no server upload).
How to use for base58-decoder
Paste or drop content
Paste your Base58 string into the editor (or drop a .b58/.txt file that contains Base58 text).
Click "Decode"
Select the Alphabet (Bitcoin/Flickr/Ripple) and Character set, then click "Decode" to recover the original text.
Copy or download
Copy the decoded text from the output. If you processed multiple inputs, review each result and copy/download as needed.
Technical specifications
Execution Model
Runtime disclosure and constraints for the decoding workflow.
| Aspect | Detail |
|---|---|
| Runtime | 100% client-side processing (no server upload). |
| Action scope | Decoding only (this page) |
| Input type | Text (Base58 string) |
| Output type | Text (decoded bytes interpreted using the selected character set) |
| Alphabet options | Bitcoin (default), Flickr, Ripple / XRP |
| Limits | ~1–2MB chars; ~25000 ms timeout |
| Retention | All processing happens locally in your browser (no upload) |
Mini Example
A small decode illustration (output depends on alphabet and charset options).
| Example | Value |
|---|---|
| Input (Base58) | 9Ajdvzr |
| Output (text) | Hello |
Errors & Edge Cases
Typical decode issues and how to resolve them.
| Symptom | Likely cause | What to check |
|---|---|---|
| Invalid characters / validation error | Input contains characters outside the selected Base58 alphabet | Confirm Alphabet (Bitcoin/Flickr/Ripple). Toggle Strict validation to diagnose issues. |
| Decoding fails on pasted strings with formatting | Input includes spaces, punctuation, newlines, or separators | Enable "Allow separators (spaces, dashes, punctuation)" for decode. |
| Decoding fails with a data: prefix | Input is a data URI (e.g., data:text/plain;base58,...) | Enable "Accept data:*;base58, prefix" to strip the prefix before decoding. |
| Garbled output (mojibake) | Character set mismatch when interpreting decoded bytes as text | Select the correct "Character set" (unknown/unsupported charsets fall back to UTF-8). |
| Input too large / timeout | Input exceeds size/time constraints | Reduce input size; disable Live preview; decode in smaller chunks. |
Command line alternatives
For repeatable decoding (CI or local workflows), use a maintained Base58 implementation that supports the specific alphabet you need (Bitcoin/Flickr/Ripple). There is no Base58 codec in most OS core utilities.
All platforms (Python)
Decode Base58 to bytes with a library, then decode bytes to text using the intended charset
python -c "import sys; print('Use a reputable Base58 library to decode to bytes, then decode bytes with the expected charset (e.g., UTF-8).')"Python's standard library does not include Base58. Pin a maintained library version and explicitly choose the correct alphabet where applicable.
Node.js
Decode Base58 using a maintained package (choose alphabet explicitly if supported)
node -e "console.error('Use a well-known Base58 package to decode to bytes, then convert bytes to string using the correct encoding.')"Node core does not ship Base58. Pick a reputable library and document the alphabet choice (Bitcoin/Flickr/Ripple) to avoid mismatches.
Use cases
Decode Base58 payloads from logs and configs
- Recover original text from Base58-encoded identifiers
- Quickly inspect Base58 strings without leaving the browser
Debug alphabet mismatches between systems
- Verify whether a partner uses Bitcoin vs Flickr vs Ripple alphabet
- Use Strict validation to pinpoint the first invalid character
Sanity-check Base58 inputs in CI-like workflows
- Confirm test fixtures decode cleanly under the intended alphabet
- Catch invalid characters early by enabling Strict validation
Safer handling of pasted Base58 strings
- Strip data URI prefixes before decoding to avoid surprises
- Avoid copying raw decoded content into shared channels
❓ Frequently Asked Questions
Is there a public API for this tool?
API endpoint.Is processing local or remote?
Can I paste secrets here safely?
Why does decoding fail with a validation error?
Pro Tips
If you don't control the source of the Base58 string, try decoding with each alphabet (Bitcoin/Flickr/Ripple) and enable Strict validation to quickly identify the correct one.
For pasted Base58 from emails or PDFs, keep "Allow separators" enabled so spaces/newlines don't break decoding.
If output text looks corrupted, the bytes are likely fine but the text encoding is wrong—switch the Character set (unsupported choices fall back to UTF-8).
Prefer local scripts for secrets and for repeatable pipelines; pin the library version and explicitly select the alphabet in CI.
If decoding feels slow or times out, disable Live preview and decode smaller chunks; the tool enforces ~2MB input and ~25000 ms timeout.
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