Upscale Images - Instantly
2x or 4x your image size without blur or artifacts — instant, no account needed.
Drop your image here
Drag & drop or click to browse — JPG, PNG, WebP up to 5 MB
✅ Image upscaled successfully!
Upscaling Made
Incredibly Simple
No learning curve. No sign-up. Drop your image, pick your scale, and download in seconds.
2× or 4× in one click
Choose your upscale factor upfront and hit Upscale. No complex settings, no learning curve — just bigger, sharper images immediately.
Edge-aware sharpening
Our algorithm preserves edges and fine detail rather than just stretching pixels. Results look natural — not over-processed or artificially sharpened.
Format preserved automatically
Your JPGs stay JPG, PNGs stay PNG, WebPs stay WebP. No accidental format changes — what you upload is what you get back, just larger.
Private by default
Your images are processed entirely in your browser using Canvas API. They are never sent to or stored on our servers. Deleted the moment you download.
No account. No watermarks. No limits.
UntinyPNG gives you professional-grade AI upscaling completely free — for designers, photographers, and everyday users alike. Use it as many times as you need.
Start upscaling nowFrequently Asked
Questions
Everything you need to know about upscaling images with UntinyPNG.
Not with our tool. We use bicubic interpolation combined with edge-sharpening passes — the same technique used in professional image editing software. Small, very low-quality source images will show some softness, but photographs and illustrations with good original detail upscale beautifully at both 2× and 4×.
You can upload JPG, PNG, and WebP images up to 5 MB. The output format always matches your input — a JPG in gives a JPG out. One image at a time is supported for upscaling so you can preview and download before moving to the next.
Choose 2× for web use, social media, and everyday enlargements — it's fast and produces excellent results. Choose 4× when you need print-quality output, very large display images, or when working with thumbnails and small product photos that need significant enlargement. Keep in mind 4× produces much larger files.
The maximum input file size is 5 MB. The output file may be significantly larger depending on your image dimensions and chosen scale factor. For example, a 2000×2000px image at 4× will produce an 8000×8000px result — make sure you have enough browser memory for large upscales.
Need a Smaller File
Instead of Bigger?
Our Image Compressor does the opposite — shrink file sizes by up to 90% while keeping quality intact.
Image
Compression — up to 90% smaller
Reduce file size without visible quality loss. Perfect for faster websites, email attachments, and storage savings — supports JPG, PNG and WebP.
- Batch compress multiple images at once
- Adjustable quality slider
- Format stays the same
- Free — no account needed