Compress images to any size
Reduce file sizes by up to 90% using MozJPEG, OxiPNG and AVIF. Hit exact KB targets for government portals, job forms and more.
50KB100KB200KB500KB
100% browser-based. No uploads. Always free.
Edit and compress images in seconds
Compress, crop, resize, watermark, and convert images. JPEG, PNG, WebP, AVIF, HEIC and more. GPS and EXIF metadata stripped automatically.
Drop images here or click to browse
JPEG, PNG, WebP, AVIF, HEIC, JXL, GIF supported
Select images
or
Paste from clipboard (Ctrl+V) or drag from any folder
JPEGPNGWebPAVIFHEICJXLGIF
100% Private
Images never leave your device
WebAssembly
Near-native processing speed
Always Free
No limits, no watermarks
What you can do
Everything, right in your browser
No sign-up. No uploads. Private by design.
Convert between formats
Switch between JPEG, PNG, WebP, AVIF, HEIC and JPEG XL. Batch convert entire folders with no file limit.
HEIC → JPGWebP → AVIFJPG → WebP
Create and extract PDFs
Combine multiple images into one PDF, or extract pages as PNG, JPG and WebP. Transparency handled. No watermarks.
Images → PDFPNG → PDFJPG → PDF
Resize for social media
One-click presets for Instagram, YouTube, Twitter and more. Portrait, square, story and reel sizes. No distortion, no white bars.
InstagramYouTubeTwitter
Exact Size Targets
Compress image to a specific file size
Meet portal upload limits or reduce file size for job applications and government forms. All processing stays in your browser.
Full Feature Set
Everything you need to edit and optimise images
Fast, private, and browser-based. No account required.
Image Compression
Reduce file sizes by up to 90% using MozJPEG, OxiPNG, libwebp, libavif and JPEG XL. Choose format and quality per image or apply to all at once.
Watermark Tool
Add text or logo watermarks with custom font, size, opacity, position, rotation and tile repeat. Batch watermark images and download as ZIP.
Brightness, Contrast and Saturation
Fine-tune exposure and colour with a live preview. Adjust a single image or batch-apply to all images simultaneously.
Resize and Scale
Resize to exact pixel dimensions or scale by percentage. Batch resize all images to a max width with automatic aspect ratio preservation.
Crop
Crop with free, 1:1, 4:5, 16:9 and 9:16 aspect ratio presets. Large touch targets make precise cropping easy on mobile.
Batch Processing
Upload as many images as you need. Apply format, watermark, adjustments or resize to all at once. Download as ZIP or individually.
Before and After + Undo
Compare original and edited image side by side at any time. Undo and redo every transform including crop, resize, watermark and adjustments.
EXIF Viewer and Privacy
See embedded camera model, date taken and GPS presence before export. All metadata removed during compression.
AVIF, WebP and HEIC Conversion
Convert between all modern formats. HEIC to PNG, HEIC to WebP, WebP to AVIF, AVIF to WebP and more. All browser-based.
Format Converters
Free image conversion tools
Every tool runs in your browser. Nothing is uploaded.
Add Watermark to Image
Text or logo watermarks. Custom opacity, position, rotation, tile repeat. Batch watermark images. No uploads.
Adjust Image
Brightness, contrast, saturation, hue, temperature, sharpen and more. No uploads.
Crop Image
Crop, rotate, flip, straighten. Social presets for Instagram, YouTube and more. No uploads.
Image Metadata Viewer
View EXIF data, GPS location, camera info. Remove metadata with one click. No uploads.
Image Color Picker
Extract dominant colors. HEX, RGB, HSL codes. Copy to clipboard. No uploads.
SVG to PNG
Convert SVG to PNG at 1x to 4x scale. Transparency preserved. No uploads.
Resize Image
Resize to any pixel dimensions. No white space, no distortion. No uploads.
Resize for Instagram
Portrait, square, story, reel. All Instagram sizes in one place.
HEIC to JPG
Convert iPhone HEIC photos to JPG. No uploads.
JPG to PNG
Lossless conversion. Pixel-perfect PNG with OxiPNG maximum compression. No uploads.
HEIC to PDF
Convert iPhone HEIC photos to PDF. No uploads, no watermarks.
AVIF to PDF
Convert AVIF images to PDF in your browser. No uploads.
HEIC to PNG
Lossless HEIC conversion. Transparency preserved. No uploads.
HEIC to WebP
Convert iPhone photos to WebP. Smaller than PNG. No uploads.
JPG to WebP
25 to 34% smaller than JPEG. Faster web pages.
AVIF to JPG
Convert AVIF to JPEG. Works in every application.
AVIF to WebP
Better compatibility than AVIF. 97% browser support.
WebP to AVIF
Up to 20% smaller than WebP. Better compression.
JPG to AVIF
Up to 50% smaller than JPEG. Best compression.
Images to PDF
Combine multiple images into one PDF.
PNG to PDF
Convert PNG images to PDF. Transparency handled. No uploads.
JPG to PDF
Convert JPEG photos to PDF. No uploads, no watermarks, no size limits.
WebP to PDF
Convert WebP images to PDF in your browser. No uploads.
PNG to ICO
Create favicon.ico from any PNG. Multi-size package with HTML snippet. No uploads.
JPG to ICO
Create favicon.ico from any JPEG. Multi-size package with HTML snippet. No uploads.
ICO to PNG
Extract PNG images from any ICO or favicon file. No uploads.
All tools
Browse the full list of free image tools.
Why it matters
Why compress and optimise images?
Compressing images improves website speed, boosts SEO rankings, and reduces page load time.
01
Faster website load times
Smaller images reduce page weight and improve Core Web Vitals scores.
02
Better SEO rankings
Google rewards fast-loading pages. Optimised images are one of the highest-impact improvements.
03
Meet upload size limits
Government portals, job applications and university forms require images under 50KB or 100KB. Compress to exact size
04
Protect your privacy
GPS, EXIF and camera data removed during compression. iPhone user? Convert HEIC to JPG
FAQ
Frequently asked questions
How much can I compress my images?
Most images compress by 60 to 90% without visible quality loss. WebP and AVIF typically achieve the best ratios. For strict size targets use the compress to exact size tools.
Can I compress an image to a specific file size like 50KB or 100KB?
Yes. ImgTweak has dedicated tools for 20KB, 50KB, 100KB, 200KB, 500KB and 1MB. There are also under-limit tools (under 50KB, under 100KB) for portal submissions. These are commonly required by government portals, job application systems and university forms.
What image formats does ImgTweak support?
The main compressor supports JPEG, PNG, WebP, AVIF, JPEG XL and HEIC. Dedicated converters include HEIC to JPG, HEIC to PNG, HEIC to WebP, AVIF to JPG, AVIF to PNG, AVIF to WebP, JPG to AVIF, PNG to AVIF, WebP to AVIF, WebP to JPG, WebP to PNG, JPG to WebP, PNG to WebP, Images to PDF and PDF to Images.
Can I convert HEIC photos to PNG or WebP?
Yes. Use the HEIC to PNG tool for lossless conversion with full transparency, or HEIC to WebP for smaller files than PNG. Both run entirely in your browser with no uploads required.
Can I process multiple images at once?
Yes. Drop as many images as you need and use batch operations to apply the same format, watermark, adjustments or resize to all of them at once. Large batches are automatically processed in queues of ten to keep your browser responsive. Download everything as a ZIP or individually.
Are there any file size or batch limits?
No hard limits. ImgTweak does not block any file by size or cut off your batch at an arbitrary number. For very large files or big batches the tool shows a contextual warning and recommends closing other browser tabs, but always lets you proceed.
Are my images safe and private?
Absolutely. Your images never leave your device. All processing happens locally in your browser using WebAssembly. No uploads, no tracking, no server storage.
Is ImgTweak really free?
Yes, 100% free with no hidden costs, no watermarks on exported images, and no feature limits. All processing runs in your browser so there are no server costs to pass on.
Ready to compress your images?
No sign-up. No uploads. Just drop your images and download optimised files in seconds.