Useful Base64 Tools starting points

Jump into a common task, then use the full directory below for more specialized tools.

Hex to Base64 Converter Base64 to File Decoder Binary to Base64 Converter File to Base64 Encoder Base64 to Binary Converter Base64URL Decoder

16 browser developer tools

Base64 Tools

Encode, decode and inspect text, files, Base64URL and Data URIs locally with byte-level context.

Choose the developer job first

Start with the task you need—formatting, validation, conversion, inspection, or cryptographic checks—and switch tools only when the format or rule changes.

Text encoding

Use standard Base64 or URL-safe Base64 depending on the receiving format.

Base64 EncoderCreate canonical Base64 in the browser and inspect size overhead without presenting encoding as encryption.Base64 DecoderInspect decoded bytes safely in the browser and use Base64 to File when the payload is binary rather than valid UTF-8 text.Base64URL EncoderCreate Base64URL locally with - and _ characters and optional padding; padding is omitted by default.Base64URL DecoderValidate URL-safe Base64, restore canonical byte groups, and decode UTF-8 without sending data to a server.Base64 ValidatorCheck alphabet, padding placement, length, canonical decode/re-encode behavior, decoded byte count, and detected variant locally.

Files & binary

Move between local files and Base64, then inspect decoded bytes before assuming they are text.

File to Base64 EncoderConvert a local file to Base64 without uploading it and inspect the resulting payload before embedding or copying.Base64 to File DecoderTurn Base64 or a data URI back into bytes locally and verify the decoded payload before saving it.Base64 InspectorCheck what a Base64 string actually contains without assuming that readable-looking encoded text is encrypted or trusted.Base64 to Binary ConverterConvert Base64 into byte-oriented binary groups without assuming the bytes are readable text.Binary to Base64 ConverterPaste binary bytes containing 0 and 1, validate complete 8-bit groups, and encode them as RFC 4648 Base64.

Data URI & representations

Create/parse Data URIs or convert Base64 to hex/binary representations.

Data URI GeneratorCreate percent-encoded text data URIs or Base64 file data URIs locally with an explicit media type.Data URI ParserInspect embedded data payloads in the browser before copying, decoding, or saving them.Hex to Base64 ConverterPaste hex bytes with optional separators and encode the exact byte sequence as Base64 locally.Base64 to Hex ConverterConvert standard or URL-safe Base64 to exact byte-oriented hex locally in your browser.Base64 NormalizerDecode and re-encode Base64 into a canonical standard or URL-safe form with explicit padding behavior.

All Base64 Tools

Base64 Tools

Base64 Encoder

Encode UTF-8 text as standard Base64 locally with decoded-byte inspection, canonical output checks, size context, and Base64URL/file workflow links.

Base64 Tools

Base64 Decoder

Decode validated Base64 locally with byte counts, canonical normalization, UTF-8 status, hex preview, and file-oriented fallback guidance.

Base64 Tools

Base64URL Encoder

Encode UTF-8 text with the RFC 4648 URL- and filename-safe Base64 alphabet.

Base64 Tools

Base64URL Decoder

Decode Base64URL with or without padding back to strict UTF-8 text locally.

Base64 Tools

File to Base64 Encoder

Encode local files to Base64/Data URI workflows while adding canonical payload inspection, byte statistics, and browser-local privacy context.

Base64 Tools

Base64 to File Decoder

Decode Base64 to a local file with payload validation, byte/UTF-8/hex inspection, MIME context, preview, and download workflows.

Base64 Tools

Base64 Validator

Validate standard or URL-safe Base64 structure and canonical padding bits.

Base64 Tools

Base64 Inspector

Inspect Base64 payload length, decoded bytes, canonical form, UTF-8 status, MIME/data-URI context, and a bounded hex preview locally.

Base64 Tools

Base64 to Hex Converter

Decode Base64 bytes and render them as hexadecimal.

Base64 Tools

Hex to Base64 Converter

Convert hexadecimal bytes to RFC 4648 Base64.

Base64 Tools

Base64 to Binary Converter

Decode Base64 bytes and display each byte as 8 binary bits.

Base64 Tools

Binary to Base64 Converter

Convert 8-bit binary byte groups to Base64.

Base64 Tools

Base64 Normalizer

Normalize standard or URL-safe Base64 alphabet, whitespace, and padding.

Base64 Tools

MIME Base64 Line Wrapper

Wrap or unwrap Base64 for MIME transfer encoding line length rules.

Base64 Tools

Data URI Generator

Generate RFC 2397 data: URLs from local text or files.

Base64 Tools

Data URI Parser

Parse Data URIs locally with MIME/encoding details plus connected Base64 byte, UTF-8, and bounded hex inspection.