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FileKit
12 tools

Image Conversion Tools

Convert between every common image format without uploading a single byte. These image conversion tools decode and re encode your files locally using the browser canvas and WebAssembly codecs, so your photos never leave your device.

AVIF to JPG Converter

Convert AVIF images to JPG in your browser with a background colour control, and a clear note on browser decode support.

avifjpg

Base64 to Image Converter

Paste a Base64 string or data URI and decode it back into a downloadable image in your browser.

png

BMP to PNG Converter

Convert BMP bitmap images to compressed PNG in your browser, shrinking the file with no visible quality loss.

bmppng

GIF to PNG Converter

Convert the first frame of a GIF to a lossless PNG in your browser, with no upload and no animation lost silently.

gifpng

HEIC to JPG Converter

Convert HEIC or HEIF photos from an iPhone to JPG in your browser, with a clear notice about which browsers can decode HEIC.

heicheifjpg

Image to Base64 Converter

Convert an image to a Base64 data URI in your browser, with ready made copy buttons for CSS and HTML.

pngjpgjpegtxt

JPG to PNG Converter

Convert JPG or JPEG photos to lossless PNG in your browser, with full batch support and no upload step.

jpgjpegpng

JPG to WebP Converter

Convert JPG or JPEG photos to WebP in your browser with an adjustable quality slider and no upload step.

jpgjpegwebp

PNG to JPG Converter

Convert PNG images to JPG in your browser with adjustable quality and a custom background behind transparency.

pngjpg

PNG to WebP Converter

Convert PNG images to WebP in your browser with an adjustable quality slider, keeping full transparency.

pngwebp

SVG to PNG Converter

Convert SVG vector graphics to raster PNG in your browser with control over width, height and export scale.

svgpng

WebP to PNG Converter

Convert WebP images to PNG in your browser, keeping full transparency and resolution, with no upload step.

webppng

Why use browser based image conversion tools

Choosing the right image format is the difference between a page that loads instantly and one that bleeds visitors. PNG preserves transparency and sharp edges, JPG compresses photographs efficiently, WebP splits the difference with both lossy and lossless modes, and AVIF pushes compression further at the cost of slower encoding. Each tool in this cluster handles one specific conversion path so you land on a page that answers exactly what you searched for.

Everything here runs client side. When you drop a file into one of these image conversion tools the browser reads it into memory, decodes the pixels, re encodes them in the target format and hands you a download link. Nothing is transmitted to a server, nothing is stored, and there is no queue to wait in. That also means large batches finish as fast as your own hardware allows rather than as fast as a shared upload pipeline allows.

Frequently asked questions

Yes. Every tool in this category is free with no account, no trial and no daily limit. The tools run as JavaScript inside your own browser, so there is no server cost to pass on and no reason to meter usage.

No. Files are read directly from your device into browser memory, processed locally and written back out as a download. Nothing is transmitted, nothing is logged and nothing is stored after you close the tab.

There is no limit imposed by us. The practical ceiling is your own device memory, because the file has to fit in the browser tab while it is being processed. Most machines handle files of several hundred megabytes without trouble.

Current versions of Chrome, Edge, Firefox and Safari on desktop and mobile are all supported. Where a specific tool depends on a capability that a browser has not shipped yet, that tool says so on its own page before you select a file.