Compress Images Online Free
Reduce image file size by typically 50% to 80% depending on selected quality. Free bulk image compressor — supports JPG, PNG, WebP, AVIF. No signup, no watermarks.
Drop your images here
Supports HEIC, JPG, PNG, WebP, AVIF, TIFF, GIF · Up to 50 files · 50MB max
Settings
Smallest fileBest quality
Files
Input (0)0.0 KB
What This Tool Does
Reduce image file sizes with configurable quality settings. In standard compression tests, photos typically see 50% to 80% file size savings at recommended quality levels (75–85) while preserving visual fidelity. The compressor supports JPEG, PNG, WebP, AVIF, TIFF, and GIF, processing files statelessly with zero persistent storage. A quality slider (1 to 100) lets you fine-tune the balance between file size and detail according to your use case. You can process up to 50 files in batch and download the compressed images individually or as a single ZIP archive. Original files are never modified.
When to Use This Tool
Compress before uploading to a website, attaching to an email with a 25MB cap, or publishing to a CMS that imposes per-image limits. JPEG and WebP both use lossy compression and respond well to quality reduction. PNGs containing photographs also benefit from being converted to JPEG or WebP at the same time. Lossless graphics, logos with sharp edges, or screenshots with text are better served by the dedicated Lossless Optimize tool — quality loss is visible faster on hard edges than on photographs.
How to Use
- 1
Drop your images into the upload area
Drag and drop one or many image files, or click the upload area to browse. Files of any supported format can be mixed in the same batch.
- 2
Choose a quality value
Use the quality slider. Start at 80 for photographs, 90 for screenshots and UI captures. Lower values produce smaller files at the cost of visible artefacts in smooth gradients.
- 3
Preview file-size savings
Each file shows the original size, the compressed size, and the percentage saved. Re-run with a different quality if a particular image is over- or under-compressed.
- 4
Download the result
Save individual compressed images, or click 'Download all as ZIP' to get the entire batch in one archive. Originals are never modified.
Privacy First — Zero File Storage
Your images are processed securely with zero persistent storage. Files are handled statelessly in memory and discarded immediately after processing. No database, no tracking, no retention.
Frequently Asked Questions
Is this image compressor really free?
Yes. theimgapp is completely free to use with no daily limits, no signup required, and no watermarks added to your images.
Are my images safe?
Your images are processed securely with zero persistent storage. Files are processed in memory and discarded immediately. No data is retained.
What file formats are supported?
The compressor supports JPEG, PNG, WebP, AVIF, TIFF, and GIF formats.
How much can I reduce file size?
Typical benchmark tests on photographic images achieve 50–80% size reduction at quality 80 with minimal perceptible difference. Simpler graphics or flat-color PNGs converted to modern formats can see even higher reductions, though exact savings depend on image resolution, palette complexity, and initial compression.
Should I use lossy or lossless compression?
Use lossy (this tool) for photographs and detail-rich images where small visual changes are imperceptible. Use the Lossless Optimize tool for logos, screenshots, and any graphic where pixel-perfect output matters.
Does compression affect EXIF metadata?
By default the compressor preserves EXIF data. To strip GPS, camera info, or other metadata, run the dedicated Metadata tool after compression.
Pro Tips
- For web use, convert to WebP or AVIF instead of JPEG for the same quality at 25% to 50% smaller file size.
- Resize before you compress. A 4000px image compressed at quality 80 is still many times larger than a 1200px image at the same quality.
- If you need to hit a specific file-size cap (e.g. 1MB for an upload form), use the Target File Size tool instead — it binary-searches for the right quality automatically.
- EXIF metadata adds a few KB to each file. If privacy or size matters, run the Metadata tool with the strip option after compression.