Convert PNG to JPG Online
PNG to JPEG conversion in seconds. No upload, batch 30, free forever — high quality output.
Convert PNG to JPG online for free. No upload required — 100% browser-based conversion. Batch convert up to 30 PNG images to JPEG at once. Adjustable quality, EXIF-free output.
CompressFast is a pure browser-side image processing tool — no files are ever uploaded to any server during compression. Your files stay on your device, processing is fast, and privacy is absolute.
Detailed Usage Guide
PNG (Portable Network Graphics) is the format of choice for screenshots, logos, UI elements, and any image with text or sharp edges — it is lossless, supports transparency, and produces pixel-perfect output every time. But PNG files are large. A single full-resolution screenshot can easily exceed 3MB. For web use, email attachments, and social media sharing, that size is overkill — JPEG delivers 90% of the visual quality at 10-30% of the file size.
CompressFast's PNG to JPG converter makes this transformation effortless and private:
1. Smart format detection — Upload any PNG (including those mislabeled as .jpg) and CompressFast correctly identifies it by file signature, not extension. The conversion engine handles 8-bit, 24-bit, and 32-bit (RGBA) PNGs correctly, including images with transparency.
2. Transparency handling — Since JPEG does not support alpha channels, transparent areas are filled with white (#FFFFFF). CompressFast warns you when converting PNGs with transparency so you can make an informed choice. For images where transparency matters, consider converting to WebP instead — it supports transparency and is still 25-35% smaller than PNG.
3. Quality-controlled JPEG encoding — The quality slider (10-100%) gives you precise control. At 85-95%, the visual difference from the original PNG is imperceptible while file size drops 70-85%. The browser's native JPEG encoder is used at full quality, producing standard-compliant files that work everywhere.
4. Combined resize + convert — The biggest file size wins come from combining resize with format conversion. A 2000×2000 PNG at 3MB, when resized to 1200×1200 and converted to JPG at 85% quality, can become 120-180KB. That is a 94-96% reduction — from a file too large for most web use to one that loads instantly.
5. Batch workflow — Drop 30 PNGs, select JPEG output, set quality to 90%, click compress. All files convert in parallel. Download a single ZIP of ready-to-use JPGs. Each file is correctly named and stripped of metadata (if enabled).
The PNG→JPG conversion is one of the most common image workflows: every designer who exports PNGs from Figma or Photoshop needs it, every developer who receives oversized screenshots needs it, and every content creator who shares images online needs it. CompressFast makes it free, private, and instant.
Why Choose CompressFast?
Drastically Smaller Files
PNG files are often 3-10× larger than JPEG at the same resolution. Convert to JPG and reduce file size by 70-90% — perfect for web, email, and sharing.
Adjustable Quality
Control JPG output quality from 10-100%. 85-95% recommended for photos — excellent quality with dramatic size reduction.
Private & Local
Your PNG files never leave your device. All conversion happens in your browser via Web Workers — no upload, no server, no risk.
How to PNG to JPG Online
Upload PNG Files
Drag PNG images into the upload area, click to browse, or Ctrl+V paste. Up to 30 files at once, 10MB each for free.
Choose JPG Quality
Adjust the quality slider — 85-95% for photos, 70-85% for web images. Enable "Strip Photo Info" to remove hidden metadata.
Download JPG Files
Each PNG becomes a compact .jpg file. Download individually or batch ZIP. Compare before/after sizes instantly.
FAQ
Why convert PNG to JPG?
PNG is lossless and great for graphics, but files are large — a single screenshot can be 2-5MB. Converting to JPG reduces file size by 70-90% while maintaining excellent visual quality. This matters for: (1) websites — faster page loads, better SEO, (2) email — many services limit attachments to 25MB, (3) social media — platforms compress uploads anyway, so pre-compressing gives you control, (4) storage — JPG takes a fraction of the space.
Does converting PNG to JPG lose quality?
Yes — JPG is a lossy format, so some quality loss occurs during conversion. However, at 90-95% quality, the difference is invisible to the naked eye while file size drops 70-85%. The loss matters most for: text (JPG creates fuzzy edges), sharp graphics like logos, and images you plan to edit repeatedly. For these cases, keep the original PNG. For photos and web images, the trade-off is overwhelmingly worth it.
What happens to transparent areas when converting PNG to JPG?
JPEG does not support transparency. Transparent areas in your PNG will be filled with white (#FFFFFF) in the output JPG. CompressFast shows a warning when converting images with transparency to JPEG. If you need to preserve transparency, convert to WebP or keep the file as PNG. If your PNG has no transparency (like most screenshots and photos), this is a non-issue.
Can I batch convert multiple PNGs to JPG?
Yes — convert up to 30 PNGs to JPG at once for free (500 with Pro). All files are processed in parallel via Web Workers. Use "Download All" to get a single ZIP of all converted JPGs. Perfect for converting a folder of screenshots, design exports, or product images.
What is the best quality setting for PNG to JPG conversion?
85-92% is the sweet spot — file size drops 70-85% with virtually invisible quality loss. For photographs: 90-95% preserves fine detail. For screenshots and UI images: 80-90% works great — text stays readable. For thumbnails and previews: 70-80% is fine. CompressFast shows you the compressed file size estimate as you adjust the slider.
Can I resize the image while converting PNG to JPG?
Yes — CompressFast combines resize and format conversion in one step. Set target dimensions in pixels or use percentage presets (50%, 75%, 1080p). Resizing before JPG encoding produces dramatically smaller files: a 2000×2000 PNG at 3MB resized to 1200×1200 and converted to JPG at 85% quality can become 150KB — a 95% reduction.
Will I lose EXIF and metadata when converting to JPG?
You control this. Enable "Strip Photo Info" to remove all metadata (EXIF, GPS, camera info, timestamps) from the output JPG — recommended for privacy when sharing online. Disable it to preserve any metadata that was in the original PNG. Note: PNG files typically contain less metadata than camera JPEGs, so there may not be much to preserve.
Is PNG to JPG conversion free? Are there any limits?
Completely free. Free tier: up to 30 images per batch (20 for single-format), 10MB per file, 400 compressions per month. Pro ($24.99 lifetime): 500 images per batch, 50MB per file, no monthly limits, AVIF output, custom presets. No watermarks, no registration required for free use.