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All encoding tools

Free browser-based tools for Base64 and every other common binary-to-text encoding, plus converters, image and file tools. Nothing you enter is uploaded.

Base64 tools

Base64 Encode and DecodeEncode and decode Base64 and Base64URL text or files Base64 EncodeEncode text or files to Base64 with charset, padding and line wrap options Base64 DecodeDecode Base64 to text or hex, with charset choice and tolerant input Base64URLURL-safe Base64 (RFC 4648 section 5) for JWT, OAuth and URLs Base64 ValidatorCheck Base64 and Base64URL strings for invalid characters and padding errors Base64 to HexConvert Base64 hashes, keys and signatures to hexadecimal Hex to Base64Convert hex hashes, keys and fingerprints to Base64 JWT DecoderDecode JWT header and claims, check expiry and verify signatures Basic Auth GeneratorBuild or decode HTTP Basic Authorization headers Data URI GeneratorCreate and inspect data: URIs with Base64 or percent-encoding

Base-N encodings

Binary (Base2)Text to binary and binary to text, 8 bits per byte Octal (Base8)Text to octal byte values and back, 000 to 377 Decimal (Base10)Text to decimal byte values (ASCII codes) and back Hex (Base16)Text to hex and hex to text, with separators and prefixes Base32RFC 4648 Base32, Base32hex, Crockford and z-base-32 Base32hexRFC 4648 Base32 with the sortable 0-9 A-V alphabet Crockford Base32Readable Base32 without I, L, O and U, with a forgiving decoder z-base-32Human-oriented lowercase Base32 without padding Base36Digits and a-z, a case-insensitive big-number encoding Base45RFC 9285 Base45 for QR codes and COVID certificates Base58Bitcoin, Flickr and Ripple Base58, with optional Base58Check Base58CheckBase58 with a double SHA-256 checksum, as in Bitcoin addresses Base62Digits and letters only, for short URLs and IDs Base85Base85 with the RFC 1924 character set, as in Git and Python Ascii85Adobe Ascii85 with the z shortcut and optional delimiters Z85ZeroMQ Base85 (RFC 32), safe inside source code strings Base91basE91 by Joachim Henke, a compact ASCII encoding UuencodeUnix-to-Unix encoding with begin and end lines XxencodeUuencode variant with a letters-and-digits alphabet

Converters

All EncodingsEncode text in every format at once and compare the results Encoding DetectorIdentify an unknown encoded string and preview the decoded data Base ConverterConvert between Base64, Base58, Base32, hex and other encodings Base58 to HexDecode Base58 addresses, keys and hashes to hex bytes Hex to Base58Encode hex bytes, keys and hashes as Base58 Custom AlphabetEncode and decode with any alphabet, as a big number or in bit groups Number Base ConverterBinary, octal, decimal, hex, Base36 and Base62 for any integer

Image tools

Image to Base64Encode any image as a data URI, img tag, CSS or Markdown Base64 to ImageDecode Base64 or data URIs to a preview and a downloadable image file PNG to Base64Lossless PNG with transparency as data:image/png Base64 JPG to Base64JPEG photos as data:image/jpeg Base64 with quality control WebP to Base64Compact WebP images as data:image/webp Base64 GIF to Base64Static and animated GIFs as data:image/gif Base64 SVG to Base64SVG vector graphics as data:image/svg+xml Base64 BMP to Base64BMP bitmaps as Base64, with optional PNG conversion ICO to Base64Favicons and .ico files as Base64 data URIs AVIF to Base64AV1-compressed AVIF images as data:image/avif Base64 TIFF to Base64TIFF scans and print images as Base64 text Base64 to PNGSave Base64 or data:image/png strings as PNG files, transparency included Base64 to JPGDecode Base64 to a .jpg photo, with a quality slider for conversions Base64 to WebPDecode Base64 WebP or convert Base64 images to smaller WebP files Base64 to GIFSave Base64 GIFs with animation intact or convert images to GIF Base64 to SVGDecode Base64 SVG icons and graphics back to .svg files Base64 to BMPDecode Base64 to .bmp or convert images to 32-bit bitmaps Base64 to ICODecode Base64 icons or turn Base64 images into favicon.ico files Base64 to AVIFDecode Base64 AVIF images, or convert to AVIF where supported Base64 to TIFFSave Base64 scans as TIFF or convert any image to uncompressed TIFF

File tools

File to Base64Encode any file up to 100 MB as raw Base64 or a data URI Base64 to FileDecode Base64 to a file with type detection and preview PDF to Base64Encode PDFs as Base64 or data URIs, with a document preview Base64 to PDFDecode Base64 to PDF, view it in the browser and download Audio to Base64Encode MP3, WAV, OGG and other audio as Base64 or data URIs Base64 to AudioDecode Base64 to MP3, WAV, OGG, FLAC or M4A and play it