Image Tools

Reduce Image Size

Compress images up to 90% without visible quality loss

Upload a JPG or PNG and compress it using adjustable quality settings. Drag the slider to balance file size vs. visual quality, then download the compressed image instantly.

100% FreeNo account neededInstant resultsPrivacy protected

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Your privacy is protected. Files are processed in your session only.

Accepted Formats

JPGPNGWEBP

Output Format

Compressed Image (.jpg / .png)

Tips for best results

  • Use clear, well-lit images
  • Higher resolution = better accuracy
  • Up to 5 MB free · 15 MB with account
Why OCRNEST

Why use Reduce Image Size?

Fast, straightforward processing that works on images and documents.

Quality Slider

Drag from 10% to 100% quality and see the estimated output size in real-time.

In-Browser Compression

Uses the HTML5 Canvas API — your image never leaves your device.

Instant Download

Download the compressed image immediately after adjusting the quality.

How it works

Three simple steps — no software to install, no account required.

1

Upload your image

Select a JPG, PNG, or WEBP image you want to compress.

2

Adjust quality

Move the quality slider until you find the right balance of size and clarity.

3

Download compressed

Click Download to save the compressed image to your device.

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Use Cases

Who uses Reduce Image Size?

From individual users to enterprise teams — common workflows this tool powers every day.

Web Optimisation

Compress or convert images for faster page load times and better Core Web Vitals scores.

Design Assets

Prepare images for use in presentations, social media, or marketing materials.

Print Preparation

Convert images to the correct format and resolution for professional printing.

Creative Editing

Apply transformations and effects without needing desktop design software.

FAQ

Reduce Image Size — Common Questions

Is the Reduce Image Size tool free?

Yes — Reduce Image Size is completely free to use on OCRNEST. You can convert files without creating an account, and a free account gets you more monthly conversions. It runs in your web browser, so there is nothing to download or install, and it works on Windows, Mac, Linux, iPhone, and Android.

What file formats does Reduce Image Size support?

The tool accepts JPEG, JPG, PNG, WEBP files. For best results use high-quality originals — images should be at least 150 DPI and documents should use standard formatting. Uploads are limited to 5 MB without an account, 15 MB with a free account, and 30 MB on paid plans.

How long does Reduce Image Size take?

Most reduce image size jobs complete in under 10 seconds. Larger or multi-page files may take 20–30 seconds. File size and complexity are the main factors. There is no queue — your file is processed immediately.

Is my file private and secure?

Files you upload are sent to our servers over an encrypted connection and processed to produce your result. Uploads from visitors without an account are stored temporarily; files saved to a signed-in account are kept until you delete them. A few tools, such as Invert Image and Reduce Image Size, run in your browser and never upload your file. See our Privacy Policy for details.

Does the Reduce Image Size conversion preserve quality?

Yes. OCRNEST performs lossless conversion wherever possible. Images are processed at full resolution, and document structure (headings, tables, bullet lists) is preserved in the output format.

How to use Reduce Image Size — step by step

  1. 1Upload your image: Select a JPG, PNG, or WEBP image you want to compress.
  2. 2Adjust quality: Move the quality slider until you find the right balance of size and clarity.
  3. 3Download compressed: Click Download to save the compressed image to your device.

Why choose OCRNEST for Reduce Image Size?

OCRNEST is built for speed, accuracy, and privacy. Unlike desktop software, there is nothing to install — open the tool in any browser and your file is processed in seconds. Files are sent to our servers over an encrypted connection and processed to deliver your result — see our Privacy Policy for how uploads are kept.

  • →Quality Slider: Drag from 10% to 100% quality and see the estimated output size in real-time.
  • →In-Browser Compression: Uses the HTML5 Canvas API — your image never leaves your device.
  • →Instant Download: Download the compressed image immediately after adjusting the quality.