How to use: Image Compressor

Image Compressor is a free online Image Tools tool that re-encode JPEG/WebP with a quality slider and size preview instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.

Use Image Compressor now →

Description

Re-encode JPEG/WebP with a quality slider and size preview.

  • Image Tools
  • Because everything is computed client-side, Image Compressor is safe to use with sensitive data such as API keys, tokens or private logs.
Input Image Compressor Output Runs 100% in your browser — your data never leaves your device.
Image Compressor — Input → Output

How to use

Using Image Compressor takes three steps:

  1. Paste your data into the input box (or load the example).
  2. Configure the options to match your target format or scenario.
  3. Copy, download or inspect the output — it updates live as you type.
How to use · Image Compressor 1 Paste your data intothe input box (or loadthe example). 2 Configure the optionsto match your targetformat or scenario. 3 Copy, download orinspect the output —it updates live as youtype.
How to use

Run

Use cases

Common situations where Image Compressor helps:

  • Re-encode JPEG/WebP with a quality slider and size preview.

Parameters

keyOptionstypealloweddefaultImage Compressor
qQuality %number—70—
maxwMax width (0 = keep)number—0—

Input: file · Output: HTML · live update while typing: ✗

FAQ

What is Image Compressor?

Image Compressor re-encode JPEG/WebP with a quality slider and size preview. It runs entirely in your browser, so your data stays private.

Is Image Compressor free to use?

Yes. Image Compressor is free, unlimited and works without registration or installation.

Does my data get uploaded?

No. All processing happens locally in your browser; nothing is sent to any server.

Good to know

  • This tool reads a file you choose locally; the file is processed in your browser and is never uploaded.
  • The result does not update while you type — press Run after changing the input.
  • The output is rendered as formatted content; use Copy to take the plain value.
  • Everything runs client-side, so extremely large inputs are limited by your browser tab’s memory rather than by a server upload limit.
  • The worked example below could not be pre-computed for this tool (needs_file); the interactive tool above still works normally.

Related tools

Image ResizerResize images locally without uploading them.Image Format ConverterConvert PNG ↔ JPEG ↔ WebP in the browser.Image to Base64 ConverterEmbed images as Base64 data URIs.Base64 to Image ConverterPreview and download an image from Base64 data.Image Color PickerPick pixel colors from any uploaded image.Base64 EncoderEncode text, JSON, URLs or files to Base64, standard or URL-safe.

Image Compressor → · Image Tools →

Use Image Compressor now →