NEWFile Renamer Pro v1.0 is here — see what's new →

Image Base64 Decoder

Decode, encode, and inspect Base64 images on your Mac — batch processing, EXIF data, instant previews

macOSDeveloper Tools$2.99v1.0

The ultimate Base64 image toolkit for developers and designers — now with three powerful modes in version 2.0.

On-device · No account · No tracking
Decode modePaste any Base64 string and instantly preview the decoded image, with smart input that strips data-URI prefixes and fixes padding
Encode modeDrag, drop, or paste an image and copy it as raw Base64, Data URI, HTML img tag, or CSS url()
Batch processingDecode multiple Base64 strings at once, or export several encoded images to CSV and JSON

Screenshots

What it does

Everything you need. Nothing you don't.

🔍
Decode mode

Paste any Base64 string and instantly preview the decoded image, with smart input that strips data-URI prefixes and fixes padding.

📋
Encode mode

Drag, drop, or paste an image and copy it as raw Base64, Data URI, HTML img tag, or CSS url().

⚡
Batch processing

Decode multiple Base64 strings at once, or export several encoded images to CSV and JSON.

🧭
Inspect mode

Drop any image to view EXIF data, dimensions, color space, DPI, and file size — with side-by-side comparison.

🖼️
Wide format support

Recognizes PNG, JPEG, TIFF, GIF, BMP, and WebP, and exports decoded images as PNG, JPEG, or TIFF.

⌨️
Keyboard shortcuts

Decode (⌘D), Encode (⌘E), Save (⌘S), Print (⌘P), and Clear (⌘⌫) keep the whole workflow on the keyboard.

Why BraveCL

Built the BraveCL way.

Buy once, keep forever

$2.99 one time. No subscription, no renewal, no paywalled features — yours permanently.

Fully on-device

All processing happens on your device. Your files never leave it.

No account required

Download and use immediately. No sign-up, no email, no data collected.

Free updates included

All future updates are included. No upgrade fees, ever.

How it works

  1. 01
    Paste or drop your input

    Paste a Base64 string into Decode, or drag an image into Encode or Inspect.

  2. 02
    Pick a mode and format

    Choose Decode, Encode, or Inspect, then select the output format you need.

  3. 03
    Copy, export, or print

    Copy results to the clipboard, export files, share via the system share sheet, or print.

Where Image Base64 Decoder runs

macOS
Available
  • Version 1.0
  • Requires macOS 26.0 or later
  • One-time purchase, $2.99
Mac App Store →

Frequently asked questions

Is this a subscription?
No. Image Base64 Decoder is a one-time purchase ($2.99). All features and updates are included with no recurring fees.
Does it use the cloud?
No. Decoding, encoding, and inspection all happen on your Mac — your images and Base64 strings never leave the device.
Which image formats are supported?
It detects PNG, JPEG, TIFF, GIF, BMP, and WebP, and can export decoded images as PNG, JPEG, or TIFF.
Can it handle data URIs and URL-safe Base64?
Yes. Smart Input automatically strips data-URI prefixes, normalizes URL-safe variants, and fixes missing padding.
Can I process multiple items at once?
Yes. Batch Decode handles multiple Base64 strings in one go, and batch encode exports multiple images to CSV or JSON.

System requirements

Minimum OS (macOS)
macOS 26.0+
Download size
6 MB
Languages
1 language
Purchase model
One-time purchase
In-app purchases
None
Account required
None
What's new · v1.0
Version 2.0 — Image Data Workstation THREE NEW MODES: • Encode Mode — Convert images to Base64 with output format options (Raw, Data URI, HTML img, CSS url()). • Inspect Mode — View comprehensive image metadata including EXIF, dimensions, color space, and DPI. • Inspector Panel — Slide-out detail panel available in all three modes. BATCH PROCESSING: • Process multiple Base64 strings or images at once. • Export batch results as CSV or JSON. UX IMPROVEMENTS: • Try Again button — Quickly retry after a decode error without clearing your input. • Character count — Live character count displayed on the input field. • Printing indicator — Visual feedback when print job is being prepared. • Complete UI overhaul with tabbed mode navigation. • Enhanced keyboard shortcuts: Decode (⌘D), Encode (⌘E), Save (⌘S), Print (⌘P). • Better error handling with descriptive alerts. Love the app? Leave us a review!

More from BraveCL

CodeGet - Qr Code GeneratorGenerate stylish QR codes from any text — custom colors, shapes, logos, watermarks, and 68 ready frames$4.99macOS · iOSAssets for XcodeTurn a single 1024px icon into production-ready AppIcon catalogs for every Apple platform in minutes$9.99macOS · iOSMD5 Generator - File HasherGenerate, verify, and compare SHA-256, SHA-512, SHA-1, and MD5 checksums — batch hashing on your Mac$2.99macOS

We're here when you need us.

Small team, real humans. We read every message and reply within 1–2 business days.

Contact support← Back to all apps