Image Converter
Convert, resize and compress images in your browser — JPG, PNG, WebP, AVIF and more. Batch up to 20 files. Free, private, no upload.
Drop images here or click to browse
Supports JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, SVG — up to 20 files
Global Settings
Output format
Higher = better quality, larger file
About Image Converter
Choosing the right image format has a direct impact on web performance, storage costs, and visual quality. JPG is the standard for photographs with millions of colors and continuous tones. PNG is the right choice for graphics with transparency, sharp edges, or a limited color palette. WebP provides significantly better compression than both JPG and PNG with comparable quality. AVIF is the next-generation format offering the best compression-to-quality ratio available today, though browser support is slightly less universal.
Our Image Converter processes up to 20 images simultaneously in your browser, applying a consistent quality setting and optional resize dimensions to every file in the batch. The converted files download as a single ZIP archive, saving you from downloading them one by one. Everything runs using the browser's native Canvas API and JavaScript — no image is ever uploaded to a server, which matters for client photos, product images under NDA, or any sensitive visual content.
Resizing is always done with proportional scaling when aspect ratio lock is enabled, preventing unintentional distortion of the original image. The quality slider (1–100) gives you precise control over the compression-to-size trade-off, with 85 as a recommended starting point that typically achieves 70–80% file size reduction from PNG compared to WebP while being visually indistinguishable to most viewers.
How to Use Image Converter
- 1Click "Add Images" and select up to 20 image files — JPG, PNG, WebP, AVIF, GIF, and BMP are supported.
- 2Select the output format from the dropdown — WebP is recommended for most web use cases.
- 3Set the quality level (85 is a good default) and optionally set maximum width or height.
- 4Enable "Lock aspect ratio" to scale images proportionally without distortion.
- 5Click "Convert All" to process every image with the selected settings.
- 6Download all converted files at once as a ZIP archive.
Use Cases
- →Convert JPG or PNG product images to WebP for faster e-commerce page load times
- →Batch resize product photos to consistent dimensions before uploading to a CMS
- →Convert PNG screenshots to JPG to reduce file size for email attachments
- →Generate AVIF images for Next.js projects targeting best-in-class Core Web Vitals
- →Convert GIF animations to WebP for smaller animated image files on the web
- →Bulk resize event photos to web-friendly dimensions before sharing in a gallery
Tips
- ✓WebP at quality 85 typically produces files 25–35% smaller than equivalent JPG with no perceptible quality loss
- ✓Use PNG output for images with transparency or sharp logos — JPG and WebP both support transparency too
- ✓AVIF offers the best compression but may not display in Internet Explorer or older Safari versions
- ✓Lock aspect ratio when resizing to prevent stretching — set only width OR height, not both
- ✓Process 20 images at once rather than one by one to save significant time with batch conversion
- ✓For social media images, convert to JPG at quality 85 — platforms re-compress anyway
Frequently Asked Questions
You can convert from JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, and SVG. Output formats include JPG, PNG, WebP, AVIF, GIF, and BMP.
There is no hard file size limit, but files over 50 MB may take longer to process. You can batch up to 20 files at once.
No. All conversion happens 100% in your browser using the Canvas API. Your images never leave your device.
Drop multiple images onto the upload area or click to browse and select multiple files (up to 20). Configure your global settings, then click "Convert All".
WebP is the best choice for most web images — it delivers roughly 30% smaller files than JPG at the same visual quality. PNG is best for images with transparency.
Only if you want it to. The quality slider lets you control the compression level from 1 (smallest file) to 100 (highest quality). At 85 (the default), most people cannot tell the difference.