🖼 Image Format Converter

Convert images between JPG, PNG, WebP and BMP formats instantly. No upload to server needed.

Upload your image

Choose output format

Download converted image

Convert Image Format

🖼

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Supports JPG, PNG, WebP, BMP, GIF

Which Image Format Should You Use?

JPG — Best for photographs. Smaller file sizes but uses lossy compression.
PNG — Best for logos, graphics, screenshots. Supports transparency (no background).
WebP — Modern format used by websites. 25–35% smaller than JPG at same quality.

⏱️ Last Updated: June 2026 | MegaCalcOnline Editorial Team | Free browser-based tools — no upload required

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🔑 Key Takeaways

JPG: best for photographs — lossy compression, smaller files, no transparency
PNG: best for screenshots and graphics — lossless, supports transparency
WebP: modern web format — 25-35% smaller than JPG at same quality
Converting PNG to JPG removes transparency — transparent areas become white
Quality slider affects JPG/WebP output size — 80-85% is a good balance

Image Format Converter

This tool converts images between JPG, PNG, WebP, and BMP formats entirely in your browser. No upload, no account, no waiting. Choose your output format and adjust quality for JPG/WebP to balance file size and visual quality.

Which Format Should You Choose?

Format	Best For	Transparency	Typical File Size
JPG	Photos, product images	No	Smallest (lossy)
PNG	Screenshots, logos, graphics	Yes	Larger (lossless)
WebP	Web images, modern browsers	Yes	25-35% smaller than JPG
BMP	Windows compatibility, legacy	No	Largest (uncompressed)

Frequently Asked Questions

What happens when I convert PNG to JPG?

Transparent areas in the PNG become white in the JPG output, because JPG doesn't support transparency. If your PNG has a transparent background and you want to keep it, convert to WebP or keep it as PNG.

What quality setting should I use for JPG?

80-85% quality provides an excellent balance — visually indistinguishable from 100% quality at 40-60% smaller file size. Below 70%, compression artifacts (blocky areas) become visible, especially around text and edges.

Why convert to WebP?

WebP is the modern web image format supported by all current browsers. It is 25-35% smaller than equivalent JPG at the same visual quality, and unlike JPG, it supports transparency (like PNG). Google recommends WebP for web images to improve page load speed.