WhatsOnTool directory

Target File Size Compressor

Find a JPEG quality that fits your byte target, without resizing.

Open this tool

A byte limit is different from a width or height requirement. Meeting one does not meet the other.

Enter the JPEG target and inspect the achieved file size and quality.

Inputs and controls

One image or a batch

Source images

JPEG, PNG, WebP

Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. At most six source images.

Maximum size (KB, 1000 bytes)

Tool inputs

Allowed range: 1 to 4000

Canvas background

Tool inputs

How to use

Why use this tool

The search keeps dimensions unchanged while checking available JPEG quality settings.

Before relying on the result

Compare the finished picture with its source. The requested limit may be unreachable without another change, such as reducing dimensions in a separate step.

Questions

What if no quality setting reaches the target?

The requested limit may be unreachable without another change, such as reducing dimensions in a separate step.

What should I check before using Target File Size Compressor?

Prepare a supported source image and check Maximum size (KB, 1000 bytes) and Canvas background. Use the exact units shown beside the controls and replace any example values with your own inputs.

Source page last modified: 2026-10-04T18:22:34+00:00. This profile describes the tool; use its page to run it.

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