4.9/5 Rating • 3518+ Users
Encode • Decode • Image • File • JWT • Hex • Data URI

Free Base64 Encode & Decode

Encode or decode text, convert image to Base64 and Base64 to image, files, JWT and hex — privately in your browser. UTF-8 safe. No login, no upload.

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Live preview

Drop an image or decode Base64 to preview here.

Smart tips

  • UTF-8 encode so Hindi, Chinese and emoji don’t break.
  • URL-safe swaps +/ for -_ — use it in query strings.
  • Data URIs are great for icons under ~20 KB. Larger images should stay as files.
  • Base64 is not encryption.

Size maths

Input bytes0
Output chars0
Overhead~33%

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Encode · Decode · No Signup

Free Base64 Encoder Decoder —
Text, Image to Base64, JWT & Files

Looking for the best Base64 encode decode tool in 2026? TimeSpace Studio encodes UTF-8 text (Hindi, Chinese, emoji), converts image to Base64 and Base64 to image, plus files, JWT and hex — without the upload that Base64Encode.org, Base64.guru and CodeBeautify still do on some flows.

Paste a data URI, an tag or CSS url() — we strip the wrapper, detect PNG/JPEG/GIF/WebP/SVG from magic bytes, preview it and let you download the file. URL-safe (RFC 4648), MIME wrap 76, and no-padding are one click.

100% client-side. No login, no signup, no watermark. Tokens, screenshots and private files never leave this browser.

Why Use Our Free Base64 Converter?

UTF-8, not Latin-1

TextEncoder so “नमस्ते 👋” round-trips. Old btoa()-only tools still break emoji.

Image ↔ Base64 in one tab

Drop a PNG or paste iVBOR… Get a preview, data URI, HTML, CSS and Markdown.

URL-safe + MIME wrap

RFC 4648 -_ alphabet, optional 76-char wrap, optional strip padding — the options APIs actually need.

JWT peek

Split header.payload.signature and pretty-print JSON. Decode only — we never verify.

Any file, not just text

PDF, ZIP, fonts, audio. Encode to Base64 or paste Base64 and download the bytes back.

No upload, no login

Unlike many “online Base64” pages, this one never posts your string to a server.

How to Encode or Decode Base64 Online Free

  1. Pick a tab — Text, Image, File, JWT or Hex.
  2. Paste or drop — text, a screenshot, a data URI, an img tag, or any file. Nothing is uploaded.
  3. Encode, Decode or Auto — Auto guesses from alphabet and padding. Turn on URL-safe or MIME wrap if you need them.
  4. Copy the snippet you need — raw, data URI, HTML, CSS or Markdown.
  5. Download — decoded images and files save with the detected extension.

Pro tip: Hello encodes to SGVsbG8=. A PNG usually starts with iVBORw0KGgo. Keep inline data URIs under ~20 KB.

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Base64 Converter Compared to Other Online Tools

Base64Encode.org, Base64.guru, CodeBeautify and Motobit cover the basics. This page stacks UTF-8, image round-trip, JWT, hex, snippet export and a strict no-upload promise in one TimeSpace tool.

Feature TimeSpace Base64 Base64Encode.org Base64.guru CodeBeautify
UTF-8 / emojiYesOften yesYesVaries
Image → Base64 + previewYes + HTML/CSSSeparate pageSeparate pageYes
Base64 → image (magic bytes)YesLimitedYesYes
URL-safe + MIME wrapYesYesYesPartial
JWT decodeBuilt-inNoSeparateSeparate
Uploads your dataNeverSome modesSome modesOften
Login requiredNoNoNoFor extra limits

Trending Search Terms (2026)

#base64 encode #base64 decode #image to base64 #base64 to image #base64 encoder decoder online #data uri generator #url safe base64 #decode jwt online #file to base64 #base64 utf-8 emoji #convert image to base64 no upload

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Frequently Asked Questions

Yes. Unlimited encode and decode, no signup, no upload. Everything runs in your browser.
Open the Image tab and drop a PNG, JPG, GIF, WebP, SVG or ICO. Copy raw Base64, a data URI, or HTML/CSS/Markdown snippets.
Paste raw Base64, a data URI, CSS url() or an HTML img tag. We detect the format from magic bytes, preview it and let you download the file.
No. Base64 is encoding, not encryption. Anyone can decode it. Use HTTPS and real crypto for secrets.
RFC 4648 replaces + with - and / with _ so the string survives URLs and filenames. JWTs use this variant.
Yes. Encoding uses TextEncoder UTF-8 so Hindi, Chinese, Arabic and emoji round-trip without mojibake.
Every 3 bytes become 4 ASCII characters (6-bit groups). Plus optional padding. Fine for small icons; poor for large photos.
Yes — the JWT tab pretty-prints header and payload. It does not verify the signature. Never paste production secrets into a random site; this one stays local, but treat tokens as sensitive.
No artificial upload cap. Very large files may hit browser memory. A few megabytes is comfortable on desktop.

Ready to encode or decode Base64?

Text, image to Base64, Base64 to image — no login, no upload.

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100% Free Online Image, PDF, GIF, Audio, Video, 3D, Calculator & Developer Tools. No login, No Signup Required, No limits, Unlimited Access, Lifetime free in 2026.

TimeSpace Studio Online Tools — bulk image converters, PDF merger, GIF makers, 3D viewers, AV1 video, AVIF to JPG, audio convertor, GST calculator, and this free Base64 encoder decoder. No login, no limits, no watermark.

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Frequently Asked Questions – Free Online Tools 2026

Is the Base64 converter really 100% free with no login?

Yes — unlimited encode/decode, image to Base64, no signup, no watermark, no daily limits.

Is the GST calculator really 100% free with no login?

Yes — unlimited GST 2.0 calculations, no signup, no watermark, no daily limits.

Is the bulk image converter really 100% free with no login?

Yes — unlimited conversions, no signup, no watermark, no daily limits.

Can I convert video to AV1 online without uploading?

Yes. Our AV1 converter processes MP4, MOV, MKV and WebM entirely in your browser.

Can I convert AVIF to JPG online without uploading?

Yes. The AVIF converter processes AVIF, HEIC, WebP and more entirely in your browser.

Is the audio converter tool free to use for all audio formats?

Yes — MP3, WAV, OGG and more, free with no limits.

Can I merge multiple PDFs online for free without signup?

Absolutely. Our PDF merger is completely free and unlimited.

How do I create an animated GIF from images for free?

Upload images, reorder frames, and create your GIF instantly with no limits.