Are my photos uploaded to a server?

No. The image is decoded and processed by your browser and the result is created on your device. Nothing is transmitted, which is why there is no limit on how many photos you process and no account to create.

Which format should I use: JPEG, PNG or WebP?

JPEG suits photographs and is understood everywhere. PNG suits graphics, screenshots and anything with transparency or sharp edges. WebP usually makes a smaller file than either at similar quality and works in current browsers, but some older software and some upload forms still ask for JPEG or PNG. The image format converter switches between all three.

How do I convert iPhone HEIC photos to JPG?

Open the HEIC to JPG converter, add the photos (several at once is fine) and choose a quality. The conversion happens in your browser, and you download the JPG files. If you need lossless output, use the HEIC to PNG converter instead.

How small can I make an image for a form with a size limit?

Use the Image Compressor and lower the quality until the size shown fits, or open one of the compress-to-size pages (for example 100 KB or 200 KB), which aim for the limit for you. Reducing the pixel dimensions with the Image Resizer first often saves more than lowering quality.

Will compressing or resizing reduce quality?

Lossy formats such as JPEG and WebP trade quality for size, and the slider decides how much. Shrinking an image to fewer pixels always discards detail. Keep your original, and compare the result at full size before you use it.

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Free Image Tools

Image tools for the jobs that come up before you can post, print or submit a photo: resizing to exact pixels or a percentage, compressing to a smaller file, cropping to an aspect ratio, converting between JPEG, PNG and WebP, turning iPhone HEIC photos into JPG or PNG, adding a text watermark, picking a colour from a picture, or making a meme or a placeholder image. They run on your device using the browser's own image support, so photos are not uploaded.

Because the file never leaves your computer there is no server limit and no watermark added to the result, and a batch of photos is handled in one go where a tool supports it. Very large images use a lot of memory, so on an older phone a 50-megapixel photo can be slow.

15 tools available

Most Popular

Image Compressor

Compress JPEG, PNG, and WebP images with a quality slider. See before/after file size savings. No upload — all in-browser.

Try it free →Image Resizer

Resize images by exact pixels, percentage, or longest side. JPEG, PNG, and WebP output with quality control. 100% client-side.

Try it free →HEIC to JPG Converter

Convert iPhone HEIC/HEIF photos to JPG in your browser. Batch conversion, quality control, no upload — files never leave your device.

Try it free →

Which tool should I use?

A photo is too large to upload: Image Compressor — JPEG, PNG and WebP with a quality slider and before and after sizes; for a fixed limit such as 100 KB use the compress-to-size pages.
Exact pixel dimensions: Image Resizer — by pixels, percentage or longest side, with quality control.
A different file format: Image Format Converter — batch convert between JPEG, PNG and WebP.
iPhone photos that will not open elsewhere: HEIC to JPG Converter — batch HEIC to JPG with quality control; the PNG version is lossless.
A specific shape or aspect ratio: Image Cropper — presets for Instagram, Stories, 16:9 and 4:3 with a rule-of-thirds grid.
Putting your name on a photo: Photo Watermark — text in a corner, centred or tiled, with size, colour and opacity.
The colours in a picture: Image Color Picker — HEX, RGB and HSL values and the dominant palette.
A dummy picture for a layout: Placeholder Image Generator — a grey image of any size with the dimensions written on it.
Making a meme from a template: Meme Generator — your own image or a blank canvas, text you can drag anywhere, caption bar option.

All Image Tools (15)

Image Resizer

Resize images by exact pixels, percentage, or longest side. JPEG, PNG, and WebP output with quality control. 100% client-side.

Open tool →Image Compressor

Compress JPEG, PNG, and WebP images with a quality slider. See before/after file size savings. No upload — all in-browser.

Open tool →Image Format Converter

Batch convert images between JPEG, PNG, and WebP. Upload multiple files, set quality, and download all at once.

Open tool →HEIC to JPG Converter

Convert iPhone HEIC/HEIF photos to JPG in your browser. Batch conversion, quality control, no upload — files never leave your device.

Open tool →HEIC to PNG Converter

Convert HEIC/HEIF photos to lossless PNG in your browser. Batch conversion, no upload, no signup — fully private.

Open tool →Image Cropper

Crop images to any size or aspect ratio. Presets for Instagram, Stories, 16:9, 4:3 and more. Rule-of-thirds grid overlay.

Open tool →Meme Generator

Create memes with popular templates or your own image. Add top/bottom text in Impact font with customizable size, color, and stroke.

Open tool →Image Color Picker

Pick any color from an image and get HEX, RGB, and HSL values. Automatically extracts the dominant color palette from any photo.

Open tool →Photo Watermark

Add text watermarks to photos — position in corners, center, or tile across the image. Control font size, color, and opacity.

Open tool →TinyPNG Alternative

TinyPNG vs Stax Image Compressor: browser-based PNG/JPG/WebP compression to a size you choose, with no usage limit. One image at a time.

Open tool →Canva Alternative

Canva vs Stax design tools — focused, free, browser-only utilities for icon sizes, social image sizes, colour codes from a photo and image compression. No signup.

Open tool →Placeholder Image Generator

Make a grey placeholder picture of any width and height with its size written on it: PNG, JPG, WebP or SVG.

Open tool →LINE Sticker Maker

Fit your artwork to LINE's 370 x 320 sticker size, make APNG animations, check them against LINE's published rules and download a ZIP.

Open tool →Telegram Sticker Maker

Make a Telegram video sticker (512 px WebM, VP9), a picture sticker (512 px PNG or WebP) or a 100 x 100 custom emoji from your own file in your browser, then check it against Telegram's rules.

Open tool →YouTube Thumbnail Resizer

Fit an image to a YouTube thumbnail, banner, X header, profile picture or Reels cover, under the file size limit.

Open tool →

Frequently Asked Questions

Are my photos uploaded to a server?: No. The image is decoded and processed by your browser and the result is created on your device. Nothing is transmitted, which is why there is no limit on how many photos you process and no account to create.
Which format should I use: JPEG, PNG or WebP?: JPEG suits photographs and is understood everywhere. PNG suits graphics, screenshots and anything with transparency or sharp edges. WebP usually makes a smaller file than either at similar quality and works in current browsers, but some older software and some upload forms still ask for JPEG or PNG. The image format converter switches between all three.
How do I convert iPhone HEIC photos to JPG?: Open the HEIC to JPG converter, add the photos (several at once is fine) and choose a quality. The conversion happens in your browser, and you download the JPG files. If you need lossless output, use the HEIC to PNG converter instead.
How small can I make an image for a form with a size limit?: Use the Image Compressor and lower the quality until the size shown fits, or open one of the compress-to-size pages (for example 100 KB or 200 KB), which aim for the limit for you. Reducing the pixel dimensions with the Image Resizer first often saves more than lowering quality.
Will compressing or resizing reduce quality?: Lossy formats such as JPEG and WebP trade quality for size, and the slider decides how much. Shrinking an image to fewer pixels always discards detail. Keep your original, and compare the result at full size before you use it.