46 free tools · no upload · no sign-up

Every image tool you need.
Private by design.

Convert, compress, resize and turn images into PDFs — instantly, in your browser. Your files never leave your device, because there is no server to send them to.

No file limits Batch + ZIP download Works offline Free forever
Live demo
SupportsPNGJPGWebPGIFBMPAVIFSVGICOPDF
46tools
0uploads, ever
100%free
∞files per batch
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Most-used tools

The six things people come here for most often.

See all 46 tools →
Convert anything

Every conversion, one grid

Pick your source format on the left and the format you need across the top. 28 conversions, all in your browser.

From ↓   To →PNGJPGWebPBMPICO
PNGPortable Network Graphics—
JPGJPEG—
WebPWebP—
GIFGraphics Interchange Format—
BMPWindows Bitmap—
AVIFAV1 Image File Format——
SVGScalable Vector Graphics—
ICOWindows Icon————
Convert

Convert tools

Change one image format into another — 28 conversions, every one in your browser.

Compress

Compress tools

Shrink file sizes with real, tunable compression — including true palette-based PNG optimisation.

Edit

Edit tools

Resize, rotate, flip and recolour without opening an editor.

Image to PDF

Image to PDF tools

Turn one or many images into a print-ready PDF.

Developer tools

Developer tools

Favicons and Base64 for people building websites.

No tool matches that search.

How it works

Three steps. No account.

1

Drop your file

Drag it onto the box, click to browse, or paste from your clipboard. Drop several at once for batch processing.

2

Pick the settings

Choose a format, drag the quality slider, set a size — every option has a sensible default so you can skip this.

3

Download

Grab each file, or everything at once as a ZIP. Nothing was uploaded, so there is nothing to delete afterwards.

Why ConvertPicto

Built the way image tools should be

Private by design

Processing happens on your device with the browser's own Canvas API. No server ever sees your files — turn off Wi-Fi and it still works.

Instant

No upload queue, no waiting for a download link. Conversion starts the moment you drop a file.

Real compression

True palette-based PNG optimisation, tunable JPG and WebP quality, and honest before/after sizes on every file.

Free, no catch

No account, no watermark, no file limits, no premium tier. Supported by unobtrusive ads.

From the blog

Guides to image formats and file size

Plain-English explanations, written by the person who built the tools.

All guides →
How to compress an image to 20, 50 or 100 KB (and what you lose)
Tested on real photos: what a 20, 50, 100, 200 or 500 KB limit does to quality and dimensions, and how to avoid a blurry result.
5 min read
We checked all 28 image conversions pixel by pixel
28 conversions, each run in headless Chromium and compared against an independent decoder. What is identical, what is lossy, and why.
4 min read
How big will your image PDF be? We measured it
Page size does not change the file size, but quality does, a lot. Measured PDF sizes from JPG and PNG sources.
4 min read
JPG vs WebP quality settings: what each level really costs in file size
Nine quality settings, two formats, five photos, measured. Where the file-size curve is gentle, and where it falls off a cliff.
4 min read
PNG vs JPG vs WebP: what we measured on photos, screenshots, text and charts
There is no best format, only a best format for each kind of image. Measured sizes and quality scores for photos, screenshots, text and charts.
4 min read
Resize or compress first? Measuring what actually shrinks an image
Image size scales with pixel count, so resizing beats lowering quality. Here are the measured numbers, and the order that works best.
4 min read
FAQ

Questions, answered

Are my images really not uploaded?

Correct. Every tool here is JavaScript running in your browser, so there is no server-side processing at all. You can load a page, disconnect from the internet, and it keeps working. The site does use standard analytics and advertising cookies, which are described in the privacy policy, but your images are never part of that.

How do I convert an image from one format to another?

Find your source format on the left of the conversion grid and the format you need across the top, then click the arrow where they meet. Drop your file, adjust the quality if you want to, and download the result. There are 28 conversions between PNG, JPG, WebP, GIF, BMP, AVIF, SVG and ICO.

Which formats are supported?

Input: PNG, JPG, WebP, GIF, BMP, AVIF, SVG and ICO, which means anything your browser can display. Output: PNG, JPG, WebP, BMP, ICO and PDF. HEIC is not supported because browsers cannot decode it.

Will I lose quality when I convert?

It depends on the target. PNG, BMP and ICO are lossless, so nothing more is lost. JPG and WebP are lossy, but at 85% quality the difference is invisible for most photos. In our accuracy test all 28 conversions produced the correct file type and 7 of them were pixel-for-pixel identical to the source.

How do I make an image smaller?

Use the compressors for JPG, PNG and WebP, or the resizer if the picture is larger than it needs to be. Shrinking the dimensions usually saves more than lowering quality; we measured it in resize vs compress.

How do I get an image under 50 KB or 100 KB for a form?

Use one of the size-limit tools: 20 KB, 50 KB, 100 KB, 200 KB or 500 KB. They test different qualities and keep the highest one that fits under your limit. The size-limit guide has the details.

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

JPG or WebP for photos, WebP for screenshots, and PNG for text, charts and anything with transparency. We tested all three on photos, screenshots, text pages and charts in PNG vs JPG vs WebP, and the format guide covers AVIF as well.

How do I turn images into a PDF?

Open Image to PDF, drop several images and tick Combine to get one multi-page PDF, or use the PNG, JPG or WebP to PDF page for that format. You can pick A4, US Letter or fit-to-image pages. See how to combine images into one PDF and what controls the PDF size.

Can I resize, rotate or flip an image?

Yes. The edit tools resize by pixels or percentage, rotate by 90, 180 or 270 degrees, flip horizontally or vertically, and convert to grayscale. All of them work on a batch of files at once.

How do I make a favicon?

Drop a square logo into the favicon generator and pick the sizes you need, usually 16, 32 and 48 pixels. The favicon guide lists every size and the HTML to add to your site.

Is there a file size or count limit?

No. Batch as many files as you like and download them one by one or as a ZIP. The only limit is your device's memory, so very large images are slower on a phone than on a laptop.

Does it work on my phone?

Yes. The site is fully responsive and works in any modern mobile browser, including Chrome, Safari, Firefox and Edge.

How is this free?

The site is supported by unobtrusive ads. There is no premium tier, no watermark and no sign-up.

Ready when you are.

Pick a tool, drop a file, and you're done — no sign-up, no upload, no waiting.

Convert an image now