Report Bug / Feature Request
AI Image Generator AI Image Editor AI Image Enhancer Background Remover Object Remover Face Swap AI Headshot Generator AI Avatar Generator More →

AI Image Upscaler

Model:
Take a small or low-res image up to 2× or 4× its original resolution. Ideal for printing iPhone shots, rescuing old profile pics, enlarging AI art, or prepping product photos for a billboard. We read your image dimensions after upload and show the exact output size before you hit upscale.

Drag & drop your image here

or click to browse

JPG PNG WebP

Up to 10MB

Uploaded preview
Input: — Output: — — —
Standard runs on our GPU and is free within your daily pool. Topaz rebuilds per-pixel detail — best for print.
Output is cached as PNG. 4× results are 4× the pixels (16× the area) — plan for a larger file.
Token estimate
—
Buy tokens
Upload an image to see the exact output dimensions and cost.
Upscaled result
Stáhnout

What you can upscale

Prep photos for print

A 1080p iPhone shot is only ~3.5"×5" at 300 DPI. 4× gets you to poster-size.

Push to 4K / Retina

Old 720p / 1080p content made sharp for 4K monitors and Retina displays.

Scale up AI art

Blow SDXL / FLUX outputs up from 1024px to 4K without losing coherence.

Rescue tiny thumbnails

Old avatars, ebay thumbnails, and forum attachments pushed to usable sizes.

Product photos

Amazon wants 1600px+ for zoom. Upscale low-res manufacturer photos in one click.

Scanned documents

Old photocopies and faxed docs brought up to OCR-readable resolution.

How to upscale 2× or 4×

Upload your image

JPG, PNG, or WebP up to 10MB. We read the dimensions automatically and show the projected output size.

Pick scale + model

2× for display, 4× for print. Standard is free-pool. Topaz and Ideogram rebuild more detail for premium quality.

Upscale

We rebuild every pixel. Standard runs in ~5s. 4× Topaz on a large image can take ~30s.

Download at new resolution

PNG output at the new resolution. No watermark. Share or save to your dashboard.

Free.ai vs. other upscalers

Free.aiTopaz GigapixelLet's EnhanceWaifu2x
Starting costFree pool, no sign-up$99 one-off$9–$34/moFree
ModelsReal-ESRGAN + Topaz + Ideogram + Clarity + AuraSR + CCSRTopaz proprietaryUndisclosedWaifu2x CUNet
Max scale4× (Topaz supports 6× input)6×4×2×
Install required?No — browser onlyYes, desktop appNoNo
API?Yes, free-tier—Paid—

Related tools: Quality enhance (same resolution) · Unblur · Restore old photo · Video upscaler

Get more tokens
Advanced options
Výsledek
Tokens running low. Get More Tokens
Want better results? Premium models (GPT-5, Claude, Gemini) deliver higher quality. View Plans

❤️ Love this tool? Share it!

Sign up to get a referral link and earn 25,000 tokens per friend.

Chceš víc? Sign up free for 10,000 tokens
Zaregistrovat se zdarma

Zpracovávám vaši žádost...

Upscale images 2x or 4x with AI. Standard Real-ESRGAN free-pool, plus premium Topaz Image Upscale, ESRGAN, and Ideogram Upscale for true resolution rebuild.

Jak se používá AI Image Upscaler

1
Zadejte svůj vstup

Zadejte text, nahrajte soubor nebo popište, co chcete. Žádný účet nepotřebujete.

2
Klikněte na generovat

Naše AI zpracovává váš požadavek během několika sekund pomocí nejlepších open-source modelů.

3
Stáhnout & podíl

Stáhnout, zkopírovat nebo sdílet svůj výsledek. Volný pro osobní a komerční použití.

Use this tool via API

Automate this tool from your own code. OpenAI-compatible REST endpoint, Bearer-token auth, no extra SDK required. Token costs match the web interface.

API Documentation Get API Key 
curl -X POST https://api.free.ai/v1/image/generate/ \
  -H "Authorization: Bearer sk-free-..." \
  -H "Content-Type: application/json" \
  -d '{"prompt": "A sunset over mountains", "model": "sdxl"}'

Související nástroje volného AI

AI Image Generator
AI Image Editor
AI Image Enhancer
Background Remover
Object Remover
Face Swap
AI Headshot Generator
AI Avatar Generator

AI Image Upscaler — FAQ

True 2× or 4× resolution upscale. We rebuild every pixel — the output genuinely has more detail than a simple resize. Ideal for print, Retina displays, and pushing AI art beyond 1024px.

Upscaler changes resolution (input × 2 or × 4). Enhance (at /image/enhance/) keeps the same resolution and just improves quality. Pick Upscaler when you need a bigger file.

Standard (Real-ESRGAN, free-pool), Topaz Image Upscale (rebuilds every pixel — best for print), Ideogram Upscale (creative detail), plus ESRGAN, AuraSR, Clarity, and CCSR.

Per-image flat regardless of scale — Standard ~1,000 tokens, Topaz ~90,000. Scale affects the output size, not the cost.

Yes. We read the input dimensions the moment you upload and show the exact output resolution (input W × scale, input H × scale) before you click upscale.

Standard runs in ~5 seconds. Topaz 4× on a large image (3000px+) can take 25–45 seconds — we show the heavy-task banner and let you close the tab; the result lands in your dashboard.

Up to 10MB input. Very large inputs at 4× produce very large outputs — plan for a 15–30MB PNG at 4× from a 2048px source.

Yes — one of the most popular use cases. SDXL outputs at 1024px upscale cleanly to 4K with Topaz or Ideogram.

Gigapixel is a $99 desktop app limited to Topaz models. Our upscaler includes Topaz as one option plus 6 alternatives, and has a free-pool tier.

No. Standard upscale (Real-ESRGAN) is free within the daily pool.

Yes — /batch/ runs the same settings across many images.

Yes. POST multipart to /v1/image/upscale/ with `image`, `model`, and `scale` (2 or 4). GET /v1/image/upscale-quote/ returns the exact token cost and projected output dimensions for a given image.

Sign up free for 10,000 tokens

Vytvořit volný účet

Kreditní karta není nutná

How would you rate this tool?

Love this tool? Share it!