Compare

JPG Smaller vs Thumbor

Open-source smart imaging service that runs on your own server.

Which to pick

Pick JPG Smaller if you want…

  • Exact-KB image compression and resizing

Pick Thumbor if you want…

  • Smart on-the-fly image cropping and optimization
  • Self-hosted image processing
  • Open-source code (thumbor/thumbor on GitHub, MIT license)

Side by side

What it is
JPG Smaller:JPG Smaller is a free browser tool that compresses, resizes, converts, crops and inspects images with exact size control.
Thumbor:Thumbor is an open-source imaging service that crops, resizes, flips and optimizes images on demand.
Best for
JPG Smaller:Exact-KB image compression and resizing
Thumbor:Smart on-the-fly image cropping and optimization
Who it’s for
JPG Smaller:Web developers, designers and anyone needing precise image size compliance.
Thumbor:Developers and ops teams needing dynamic image processing and storage flexibility.
Pricing
JPG Smaller:Free
Thumbor:Open source
Open source
JPG Smaller:—
Thumbor:Yes, 10,522 GitHub stars
Works with
JPG Smaller:—
Thumbor:OpenCV, WebP

JPG Smaller features

  • Targeted compression. Set an exact KB/MB target and the engine tunes compression to hit it.
  • Pixel-perfect resizing. Resize images to exact width and height dimensions.
  • Format conversion. Re-encode between JPG, PNG, WebP and other common formats.
  • Crop & rotate. Square, circle, rotate or flip images before processing.
  • Image inspection. View real file size, dimensions, DPI and MIME details before download.
  • Client-side processing. All operations run in the browser; files never leave the device.

Thumbor features

  • Smart face & feature detection. Detects faces and key points to automatically crop images around important areas.
  • On-demand resizing & flipping. Resize, crop, and flip images at request time without pre-processing.
  • Extensible loaders & storages. Supports file, HTTP, Redis and Mongo loaders/storage and allows custom implementations.
  • Image filters. Apply chainable filters such as brightness, contrast, grayscale, red-eye removal and blur.
  • WebP & size reduction. Serves WebP to supported browsers and applies additional tactics to shrink file size.
  • OpenCV off-loading. Can delegate heavy OpenCV processing to a separate farm for scalability.

JPG Smaller vs Thumbor FAQ

Is JPG Smaller or Thumbor free?+

Yes, both are free, and Thumbor is open source.

Is JPG Smaller or Thumbor open source?+

Thumbor is open source (thumbor/thumbor on GitHub, MIT license). DevHunt has no public source repository on record for JPG Smaller.

On DevHunt

JPG Smaller

1 upvote · Launching on DevHunt on Jun 3, 2031

Based on each tool's website and DevHunt data. Details may change; check the official sites.