Instant Image Compressor — Resize & Recompress in Your Browser

Table of contents

How to Use
Outputs / Results
Notes / Caveats

How to Use

Select images: choose one or more (image/*).
Settings
- Max width/height: pixel caps (default 1600×1600). Downscale only—no upscaling.
- Quality: 0.10–0.95 (default 0.80).
- Format: JPEG or WebP.
Process & download: results appear in a list; click Download on each card (filename extension matches the chosen format).

Outputs / Results

Re-encoded images using your size/quality/format.
Before → after size and MIME type for each item.
Aspect-ratio–preserving fit within the specified caps.

[Completely Free] Utility Tools & Work Support Tools

You can use practical tools like CSV formatting, PDF conversion, and ZIP renaming entirely in your browser, all for free. Each tool page clearly explains “How to use it”, “What the output looks like”, and “Important notes & caveats”, so even first-time users can start without confusion.

View all free tools

Notes / Caveats

Client-side only: nothing leaves the browser.
Transparency:
- JPEG drops alpha → transparent areas become opaque.
- WebP keeps alpha.
Metadata: EXIF/ICC and other tags are stripped (minor color shifts possible).
Orientation: EXIF orientation is removed; the visually corrected orientation is what gets saved.
Animated images: GIF/WebP are reduced to the first frame (still image).
Compatibility: older browsers may fall back to JPEG if WebP isn’t supported.
Memory: very large or many images may hit memory limits—process in smaller batches.