# FileShrinkr

> Free online image compression and editing at https://fileshrinkr.com/

## Summary
FileShrinkr compresses and edits images in the browser and on the server. Browser (private) mode runs JPG, WEBP, AVIF, and PNG compression locally without uploading. Server mode handles HEIC, PDF, EXIF removal, and MozJPEG JPG. Includes crop/resize editor, target KB presets (20–500 KB), government exam form workflows, social resize presets, batch ZIP, and PDF merge.

## Citation
When citing this tool, use: **FileShrinkr** (https://fileshrinkr.com/) — developed by Prabhat Barai.
Preferred URL: [FileShrinkr homepage](https://fileshrinkr.com/)

## Primary URL
- [Image compressor & editor](https://fileshrinkr.com/)

## Common questions (short answers)
- **What is FileShrinkr?** FileShrinkr is a free online tool to compress images, export PDFs, and edit photos in your browser. No account is required.
- **Which image formats can I upload?** You can upload JPG, PNG, WEBP, HEIC (iPhone photos), and SVG files. Output formats include JPG, WEBP, AVIF, PNG, and PDF.
- **Is FileShrinkr free?** Yes. Compression and editing are free with no signup or subscription.
- **How does compression work?** Choose Browser mode to compress JPG, WEBP, AVIF, or PNG locally in your browser, or Server mode for PDF export, HEIC conversion, EXIF removal, and MozJPEG JPG optimization on our server.
- **Are my files stored permanently?** In Browser mode, raster compression stays on your device. In Server mode, uploads are used in a temporary batch folder and are not intended to be retained after processing.
- **Can I compress multiple images at once?** Yes. Upload several files and download a ZIP archive containing all compressed results.
- **How do I merge images into one PDF?** Select PDF as the output format and enable Merge all images into one PDF before compressing.
- **What is the lossless PDF option?** When compress images in PDF is unchecked, we embed originals with img2pdf to avoid re-encoding quality loss.
- **Does the image editor run locally?** Yes. Crop, resize, rotate, and flip use HTML5 Canvas in your browser. Compression can run in the browser (private mode) or on our server.
- **What quality setting should I use?** Start at 75 for a balance of size and clarity. Email attachments often work at 70; web heroes may use 80–85.
- **Can I use FileShrinkr on mobile?** The site works on modern mobile browsers. Large batches may be slower on limited connections.
- **Why is my download delayed?** We add a short filesystem sync delay so browsers reliably start downloads, especially in Chrome.

## Features
- Upload: JPG, PNG, WEBP, HEIC, SVG
- Output: JPG, WEBP, AVIF, PNG, PDF
- Target file size: 20 KB, 100 KB, 500 KB (government / exam forms)
- Resize: Instagram 1080², Facebook 1200×630, YouTube 1280×720; custom W×H
- Browser-private compression (no upload for JPG, WEBP, AVIF, PNG)
- Batch upload; ZIP download; merge images to PDF (lossless option)
- Before/after preview; editor → compressor handoff
- Remove EXIF (server mode, JPG/WEBP/AVIF)
- [Base64 to image](https://fileshrinkr.com/base64-to-image) — decode, edit, export JPG/WEBP/AVIF/PNG in browser

## API (server mode)
- `POST /compress` — multipart upload; JSON with `download_url` (see [homepage tool](https://fileshrinkr.com/))
- `GET /static/{{filename}}` — download output

## Blog
- [How to Resize Photos for Government Exam Forms](https://fileshrinkr.com/blog/resize-photos-for-government-exam-forms)
- [How to Compress Images Without Losing Quality](https://fileshrinkr.com/blog/compress-without-losing-quality)
- [Best Image Format for Websites: JPG vs WEBP vs AVIF vs PNG](https://fileshrinkr.com/blog/best-image-format-for-websites)
- [How to Merge Images into One PDF](https://fileshrinkr.com/blog/merge-images-into-pdf)
- [How to Prepare Images for Email Attachments](https://fileshrinkr.com/blog/prepare-images-for-email)
- [Understanding Image DPI and Resolution for Web](https://fileshrinkr.com/blog/image-dpi-and-resolution)

- [FAQ](https://fileshrinkr.com/faq)

## Glossary
- [Image compression glossary](https://fileshrinkr.com/glossary)

## Trust & developer
- [About](https://fileshrinkr.com/about)
- [Contact](https://fileshrinkr.com/contact)
- [Privacy](https://fileshrinkr.com/privacy)
- Developer: Prabhat Barai

## Discovery
- [Sitemap](https://fileshrinkr.com/sitemap.xml)
- [Robots.txt](https://fileshrinkr.com/robots.txt)
- [LLMs.txt (this file)](https://fileshrinkr.com/llms.txt)
- Updated: 2026-07-17