ImagePinch
CONVERT IMAGE

Convert images to PNG, JPEG, WebP, or AVIF

Convert PNG, JPEG, or WebP locally to PNG, JPEG, WebP, or browser-supported AVIF, with explicit transparency and fallback guidance.

Convert PNG, JPEG, or WebP input to a chosen PNG, JPEG, WebP, or browser-supported AVIF output without sending the image to a server.

01

Add the image

Choose, drop, or paste a supported source. The editor decodes it locally and keeps the original facts visible.

02

Choose the output format

Use WebP for a modern balance of size and transparency, palette PNG for transparency and limited colours, or JPEG with a selected background for transparent pixels. AVIF falls back when the browser cannot encode it.

03

Generate and inspect

Generate the converted file, check its actual format and bytes, and inspect transparency or background handling before downloading.

No image selected
Drop images into the queue

Everything runs in this browser.

Add, drop, or paste up to 12 PNG, JPEG, or WebP images.

Choose for the image, not the extension

Photographs often suit JPEG or WebP. Graphics and cutouts may need PNG or WebP transparency. Confirm the actual output format when AVIF fallback is possible.

Conversion changes the file

Every export is re-encoded and removes source metadata. JPEG cannot preserve alpha, and lossy formats can introduce artifacts at lower quality.

When this task helps

Convert when the destination needs a different format

Common questions

What happens to transparency when converting to JPEG?

JPEG has no alpha channel. Transparent pixels are filled with the background colour selected in the editor.

Why might AVIF download as another format?

AVIF encoding depends on current browser capability. The result panel reports the actual output format when a fallback is used.

Does changing the extension convert an image?

No. This tool decodes and re-encodes the pixels, and the downloaded file signature matches the reported format.

Compress images in your browserCompress PNG, JPEG, WebP, or AVIF images locally with quality, palette, and auto-smallest controls, then compare actual output bytes.Resize images by pixels or percentageResize PNG, JPEG, or WebP images by exact pixels or percentage with aspect ratio, fit, crop, and no-upscale controls in your browser.Compress an image to a target sizeSet a best-effort KB ceiling, run bounded quality and dimension adjustments locally, and see whether the image reached the requested size.Crop images with a visual frameCrop PNG, JPEG, or WebP images locally with a draggable frame, exact coordinates, and 1:1, 4:3, or 16:9 presets.Rotate or flip images in your browserRotate PNG, JPEG, or WebP images by 90 degrees or an exact angle, expand the canvas, and flip horizontally or vertically.Mirror an image horizontally or verticallyMirror PNG, JPEG, or WebP images horizontally or vertically in your browser, then inspect directional details before export.Pixelate an image with adjustable blocksPixelate PNG, JPEG, or WebP images locally with an adjustable block size and inspect the complete result before download.Convert an image to grayscale or black and whiteConvert PNG, JPEG, or WebP images to grayscale or threshold black and white locally, then inspect contrast before export.Add a watermark to an imageAdd a text or PNG, JPEG, or WebP image watermark locally, then adjust bottom-right size and opacity before export.Batch resize images in your browserResize up to 12 PNG, JPEG, or WebP images locally with shared settings, inspect each result, and download completed files as a ZIP.