Base64 Encoder/Decoder — developer utilities, encoders and data format tools
The Base64 Encoder/Decoder converts text to Base64 and back, and can turn an uploaded file into a Base64 string. Type or paste text, click Encode to Base64 or Decode from Base64, or upload a file to get its Base64 representation. Use it when sending binary data inside JSON, emails, or API payloads.
Category: Developer Tools
About this tool
What Is Base64 Encoder/Decoder? Base64 Encoder/Decoder is a browser-based tool for Encode and decode text or files in Base64. This guide explains the result, the calculation or processing method, and correct usage. Calculation or Processing Method The tool applies the operation described in its interface: Encode and decode text or files in Base64. Processing method: The tool produces the result using a processing method appropriate to the input data type. How to Use It Open the tool and choose the required unit, mode, or options. Enter values or paste text into the input fields. Review the result, copy it, or continue with a related tool. Important Notes Use consistent units and verify values before calculating. Incomplete or invalid input can produce an incomplete result. Related Tools Tools that support the same workflow: JSON Formatter — Format, validate, and minify JSON with syntax highlighting. Hash Generator — Generate MD5, SHA-1, SHA-256 hashes for text. UUID Generator — Generate random UUID (v4) identifiers. Frequently Asked Questions How does Base64 Encoder/Decoder work? The tool processes input according to its purpose: Encode and decode text or files in Base64. Are Base64 Encoder/Decoder results accurate? Results are deterministic when input and units are correct.