Encode or decode Base64
Convert UTF-8 text in either direction and reject malformed Base64 input.
Open Base64 tool
Base64 developer tool
Encode or decode Base64. Keep the value local.
Convert UTF-8 text to Base64 or decode Base64 back to readable text. The value stays in this browser and is not sent to Elkwai.
- Input
- UTF-8 text or a Base64 value.
- Processing
- Runs in this browser; input is not uploaded.
- Output
- Copy or download the converted value.
Developer conversions
Open the exact operation you need.
Every action below opens a tested executor in the single Elkwai tool runner. Encoding changes representation; it does not encrypt or secure a value.
Percent-encode a value
Prepare a path or query value for safe inclusion in a URL.
Open percent encoderParse a URL
Separate a URL into protocol, host, port, path, query, fragment, and origin.
Open URL parserInspect JWT claims
Decode test-token headers and claims locally without pretending to verify the signature.
Open JWT decoderGenerate a digest
Calculate a SHA-256, SHA-384, or SHA-512 digest from text in this browser.
Open hash generatorGenerate UUIDs
Create standards-based UUID v4 values for development and test records.
Open UUID generatorUse the output correctly
Conversion is not a security boundary.
Base64 is reversible text encoding. Do not use it to conceal passwords, private keys, access tokens, personal data, or confidential business records.
API debugging
Inspect a test payload or authorization value without pasting it into a third-party hosted converter.
URL construction
Encode individual values, then inspect the final URL structure before it enters an application.
Test-data preparation
Create non-secret identifiers and digests for fixtures, examples, and repeatable development checks.
Need this conversion in a production workflow?
Elkwai can package deterministic validation, transformation, exception reporting, and delivery as a scheduled job, API, or managed integration.