Resources / Image Compression
TinyPNG and Squoosh handle PNG and JPEG compression with ease, SVGOMG strips unnecessary data from SVG files, and EZGif rounds out the toolkit with GIF and WebP support.
Quick Guide
Use CodeHelper's tools when you need:
- •Privacy & offline processing
- •No account or signup required
- •Fast, client-side operations
Use external tools when you need:
- •Team collaboration features
- •Cloud storage & synchronization
- •Extensive template libraries
All Tools
TinyPNG
Smart lossy compression for PNG, JPEG, WebP, and AVIF on TinyPNG's own servers. Free tier allows 20 images per batch, 5MB each, before paid plans apply.
Server side upload, files auto deleted after 48 hours. Paid API and CDN tiers for bulk use.
Optimizilla
Compresses JPEG, PNG, WebP, GIF, and SVG files entirely in the browser using WebAssembly, so nothing uploads to a server. No account and no daily limit.
Now operates under the Image Compressor name at imagecompressor.com; unlimited free use, no registration.
Compressor.io
Compresses JPEG, PNG, GIF, and SVG files with a choice of lossy or lossless mode, built by the team behind Optimizilla. Processing runs on their server.
Squoosh app
Converts and compresses images entirely in the browser with WebAssembly codecs, including AVIF, WebP, MozJPEG, and OxiPNG. Built and open sourced by Google Chrome Labs.
Open source on GitHub, no uploads, no account, installable as an offline PWA.
BulkResizePhotos
Resizes, compresses, and converts images in bulk, running locally in the browser so it keeps working offline and files never reach a server.
iLoveIMG
Compresses JPG, PNG, SVG, and GIF files in bulk online. Free with ads to use; a paid Premium tier adds batch processing and AI powered tools.
Free tier works without an account; Premium unlocks batch processing and AI features.
SvgOMG
Open source SVG optimizer built by Jake Archibald on top of the SVGO engine, running entirely in the browser with a live before and after gzip size preview.
Powered by SVGO v4, open source, no uploads, no account needed.
CompressJPEG
Compresses up to 20 JPEG photos at once directly in the browser through WebAssembly. Files never leave the device, and no account is required.
Client side only (WebAssembly); batch limit of 20 images per session.
CompressNow
Compresses JPG, GIF, and PNG files up to 9MB each, 10 per batch. Does not preserve PNG or GIF transparency, and uploads are deleted after 30 minutes.
No transparency support for PNG or GIF; batch limit of 10 images, 9MB cap each.
Promo Image Resizer
Resizes images to preset dimensions for Instagram, Facebook, YouTube, LinkedIn, and other platforms. Part of Promo's wider video and content creation suite.
Image Optimizer
Resizes and compresses digital photos for the web with adjustable quality settings. Free online tool, no account required to use it.
SVGminify
Minifies SVG files up to 12MB by stripping redundant data from the markup. Also accepts SVGL and TXT input, from the makers of SandwichPDF.
JPEG Optimizer
Resizes and compresses JPEG photos entirely in the browser with a 1 to 99 percent quality slider. Handles up to 20 images at once, downloadable as a zip.
Client side only, files never reach the server; free, no account needed.
Resizing App
Resizes and converts BMP, GIF, JPEG, PNG, HEIC, and TIFF images to JPEG, PNG, or WebP entirely in the browser. Free, no sign up, no server upload.
Runs client side; the site states it does not store uploaded data.
EZGif
Toolset for optimizing and converting GIF, WebP, JPG, and PNG, including an animated WebP maker and a bulk GIF optimizer that runs via WebAssembly.
Bulk GIF optimizer uses WebAssembly (gifsicle) in the browser; free, no account needed.
OnlinePngtools
Resizes PNG files entirely in the browser with JavaScript, preserving transparency. Part of the Browserling suite of single purpose online tools.
Free tier caps daily conversions and is personal use only; Premium removes limits and allows commercial use.
Verexif
Views and strips EXIF metadata, including GPS coordinates, from photos up to 20MB in size. The site states it keeps no copy of uploaded images.
Requires a publicly accessible image URL; 20MB file size limit.
Vecta Nano
Losslessly compresses SVG files and can minify and embed fonts to cut bandwidth further. Part of the Vecta vector editor platform, free and paid tiers.
Free tier limited to 10 files per batch, 5MB max each.
Watermarkly
Compresses JPEG photos on device rather than uploading them to a server. Offers better quality, smaller size, and specific file size target modes.
Client side processing, no registration, no watermark added; desktop and mobile apps also exist.
Jpeg.io
Converts images into optimized JPEGs using the Kraken.io compression engine on the server side. Free online interface, no account required.
Best Image Compression & Optimization Tools for Developers
Image compression and optimization is one of the highest-impact performance improvements you can make to a website. Unoptimized images are the leading cause of slow page loads, poor Core Web Vitals scores, and wasted bandwidth on mobile connections.
TinyPNG and Squoosh sit at opposite ends of this category. TinyPNG uploads files to a server for smart PNG, JPEG, WebP, and AVIF compression, free for 20 images per batch. Squoosh runs the same AVIF and WebP codecs entirely client side with WebAssembly, so nothing ever leaves the browser.
For SVG, SvgOMG wraps the open source SVGO engine in a live preview, a safer bet than smaller commercial minifiers like SVGminify with no visible maintenance history. iLoveIMG and EZGif add batch processing and format conversion on top of plain compression. The main pitfall here is upload versus local processing: tools such as Watermarkly, CompressJPEG, and Resizing App compress on device, which matters for anyone handling private or client images.
What to check before you pick one
- Lossless vs lossy options: Good tools offer both modes: lossless for quality-critical images, lossy for dramatic size reductions.
- WebP and AVIF support: Modern format conversion helps future-proof your image delivery strategy.
- Batch processing: Tools that handle multiple files simultaneously save significant time in production workflows.
Frequently Asked Questions
What is the best free online image compression tool?
Popular free image compression tools include TinyPNG (supports PNG and JPEG), Squoosh (by Google, supports many formats including WebP and AVIF), and Compressor.io. All provide significant file size reductions with minimal quality loss.
Should I use WebP instead of PNG or JPEG for web images?
Yes, WebP typically provides 25-35% smaller file sizes than JPEG at equivalent quality, with support for transparency like PNG. All modern browsers support WebP. For maximum compatibility, serve WebP with a JPEG/PNG fallback using the HTML picture element.
How do I optimize SVG files?
SVGOMG (the online version of SVGO) is the best free tool for SVG optimization. It removes unnecessary metadata, comments, and redundant data from SVG files, often reducing file sizes by 50-70% without any visual difference.