ℹ️ About This Tool — Image Format Converter
The Image Format Converter is a free, professional online tool that changes an image from one format to another — for example JPG to PNG, PNG to WebP, or WebP to JPG — quickly and privately. It runs entirely inside your web browser, so your images are never uploaded to a server, and it works on any device.
Introduction
Every image format has strengths and weaknesses. JPG is small and perfect for photos, PNG keeps sharp edges and transparency, WebP and AVIF give modern compression for the web, and BMP or ICO are needed for specific uses. Converting between them is a daily task for designers, developers, students and everyday users. This tool makes that conversion instant, reliable and completely private.
Features
- Convert between JPG, PNG, WebP, BMP, ICO and AVIF.
- Load many input formats including GIF, TIFF, SVG and (where supported) HEIC.
- Batch convert many images at once and download them as a ZIP.
- Quality control, PNG colour optimisation and WebP lossy/lossless modes.
- A background-colour picker for transparent images converted to JPG.
- Resize, rotate and flip before converting.
- Before/after comparison, zoom and fullscreen preview.
- Detailed image information and a recent-conversion history.
Benefits
Converting to the right format makes images smaller, faster to load and compatible with the app or website you are using. WebP and AVIF can cut a photo's size dramatically, PNG guarantees transparency for logos, and JPG is universally supported. Because everything runs locally, conversions are instant and your files stay private.
Supported Formats
You can load JPG, JPEG, PNG, WebP, BMP, GIF, TIFF, SVG, ICO, AVIF and HEIC (where your browser supports it) and output JPG, PNG, WebP, BMP, ICO and AVIF. That makes the tool a one-stop converter for almost every common conversion.
How It Works
When you add an image it is decoded into pixels and drawn onto an HTML canvas. The canvas is then re-encoded in the format you choose, at the quality you set. Because the browser does the encoding, there is no upload and no waiting — the converted file is ready in a moment. Re-encoding also strips metadata, which protects your privacy.
Why Use This Tool
Many online converters upload your files to a server, limit how many you can convert or add watermarks. This tool does everything in your browser with no limits, no watermark and complete privacy, wrapped in a clean, modern interface with genuinely useful extras like batch conversion, resizing and a comparison view.
Advantages
It is fast because there is no network round-trip, private because nothing leaves your device, and flexible because it supports resizing, rotation and quality control in the same step. It is also free and requires no signup or installation.
Who Can Use It
Designers converting assets, developers optimising web images, photographers changing camera formats, students preparing uploads, and anyone who has ever been told "this format is not supported" will find this tool useful.
Browser Compatibility
It works in Chrome, Edge, Firefox, Safari and Opera on Windows, macOS, Linux, Android and iOS. WebP output is supported almost everywhere; AVIF output depends on the browser; and HEIC input decodes only where the operating system provides it.
Privacy
Your images never leave your device. All decoding and encoding happen locally using the browser canvas, so you can safely convert private photos, documents or client work. Nothing is uploaded, stored or tracked.
Security
With no server and no account there is no database to breach and no credentials to leak, and the tool sets no tracking cookies. Re-encoding removes embedded metadata such as GPS location and camera details, improving your privacy when you share the result.
Best Practices
- Use JPG or WebP for photographs and PNG for logos, icons and transparency.
- Choose WebP or AVIF for the web when your audience's browsers support them.
- Set a background colour when converting a transparent PNG to JPG.
- Resize to the display size before converting to save even more space.
Tips
For the smallest web images, convert to WebP at around 80% quality. For print, keep PNG or high-quality JPG. Use batch mode and Convert All when you have many files, then grab them as a single ZIP.
Common Mistakes
Converting a transparent PNG to JPG without setting a background produces a black or white fill where transparency was — choose the background first. Converting a photo to PNG makes it much larger, not smaller; use JPG or WebP for photos instead.
Use Cases
Prepare product images for an online store, convert screenshots to compact WebP, turn a logo into an ICO favicon, change an iPhone HEIC photo into a universal JPG, or produce PNGs with transparency for a presentation.
Frequently Used Conversions
The most common conversions are JPG to PNG, PNG to JPG, WebP to PNG, PNG to WebP, JPG to WebP and HEIC to JPG. This tool handles all of them and many more in a single click.
Performance
Images are decoded off the main thread where the browser supports it and encoded with efficient canvas operations, so even large photos convert in a moment and batches process smoothly on modest devices.
Limitations
Browser-based conversion depends on the formats the browser can decode and encode, so HEIC and TIFF input and AVIF output are not available everywhere. True lossless WebP and progressive-JPEG options are limited by what the browser exposes.
Conclusion
Whether you are switching a single image to a friendlier format or converting a whole folder for the web, this online image format converter gives you speed, control and total privacy. Convert, resize and optimise your images with confidence — free and entirely in your browser.