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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | Unlimited:Waifu2x | media.io | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 62/100 2000 × 2000 · PNG | Compare in task topic → |
| Image upscaling | 89/100 2048 × 2048 · PNG | 78/100 1024 × 1024 · PNG | Active task |
| Object removal | Not tested in topic | 71/100 JPEG · Output attached | Compare in task topic → |
| Image generation | Not tested in topic | 75/100 JPEG · Output attached | Compare in task topic → |
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Browse this task →| Criterion | Unlimited:Waifu2x (WebGPU In-Browser SR) Image upscaling 89/100 Seven-aspect task score Free open-source, login-free on-device processing gives good 4× detail; a dismissible rewarded-ad prompt may appear on first use. Tested export 2048 × 2048 · PNG Historical test · 2026-10-17 | Wondershare Media.io AI Image Upscaler Image upscaling 78/100 Seven-aspect task score Signed-in free Wondershare accounts can export a crisp watermark-free 2x PNG within a 5-credit signup allowance (2 credits/run), but guest access is blocked, free credits do not replenish, and cloud queue wait is relatively long. Tested export 1024 × 1024 · PNG Historical test · 2026-10-19 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | unlimited:waifu2x in-browser AI image upscaler · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits unlimited:waifu2x Free Web2026-10-21 ↗ Free Free Free Free without login and no image-count limits (runs on local WebGPU/WASM hardware); supports up to 4x unwatermarked PNG export. 1 plan / billing-period records, all listed; — means that period is not recorded. In-browser WebGPU/WebAssembly upscaler powered by nunif/waifu2x. Completely free with no account system or paid tiers; offers swin_unet and cunet models, 1x/2x/4x upscaling, and denoise levels running on local device hardware. Cancellation, sources & verification recordCompletely free open-source-powered tool with no accounts or subscription charges. unlimited:waifu2x official page ↗ · 2026-10-21 Capture 1 ↗ | Media.io membership plans (Free Trial / Standard / Premium monthly and annual); USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Trial2026-10-21 ↗ Free Free Free 5 signup credits for new accounts (image upscaling costs 2 credits/run, allowing 2 free unwatermarked 2x PNG exports); pricing table also lists 3 daily check-in credits and 1 GB cloud storage. Standard Monthly2026-10-21 ↗ USD 10.99/month — Monthly 100 credits/month + 5 daily check-in credits (up to 100 images or 10 videos/month), watermark-free exports, and 20 GB cloud storage. Rules [1] Standard Annual2026-10-21 ↗ — USD 71.88/year Annual Billed annually at USD 71.88/year (USD 5.99/month equivalent); 100 credits/month + 5 daily check-in credits, watermark-free exports, and 20 GB cloud storage. Rules [2] Premium Monthly2026-10-21 ↗ USD 19.99/month — Monthly 400 credits/month + 10 daily check-in credits (up to 400 images or 40 videos/month), Turbo speed, watermark-free exports, 50 GB cloud storage, and 15% off extra credits. Rules [1] Premium Annual2026-10-21 ↗ — USD 119.88/year Annual Billed annually at USD 119.88/year (USD 9.99/month equivalent); 400 credits/month + 10 daily check-in credits, Turbo speed, watermark-free exports, and 50 GB cloud storage. Rules [2] 5 plan / billing-period records, all listed; — means that period is not recorded. The official pricing page lists Free Trial (5 free signup credits in the workspace where upscaling costs 2 credits/run, plus 3 daily check-in credits on the pricing table), Standard (USD 10.99/month or billed annually at USD 71.88/year, displayed as USD 5.99/month, with 100 credits/month + 5 daily check-in credits), and Premium (USD 19.99/month or billed annually at USD 119.88/year, displayed as USD 9.99/month, with 400 credits/month + 10 daily check-in credits and 15% off extra credits). Cancellation, sources & verification recordCancel auto-renewal anytime; the official pricing page states a 7-day money-back guarantee, and uploaded/generated files are automatically deleted within 7 days. Media.io official monthly/annual pricing and comparison table ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | Unlimited local WebGPU runs with zero daily caps or credit deductions | Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Cancellation & refunds | Completely free open-source-powered tool with no accounts or subscription charges. | Cancel auto-renewal anytime; the official pricing page states a 7-day money-back guarantee, and uploaded/generated files are automatically deleted within 7 days. |
| Disclosure of costs & limits | Explicitly discloses WebGPU browser requirements and model options at the top of the page | The workspace button displays the 2-credit cost ("Generate 2") and credit balance, though login is required before running |
| Task quality | ||
| Measured fixture results | Tested scale: 4× | Tested scale: 2× |
| Fixture findings | Ran 4× upscaling locally with noise reduction and text retention; speed depends on the device. | This 512x512 sample was upscaled 2x to a 1024x1024 lossless PNG with crisp text on the wooden sign and calibration plate. |
| Original historical observation | Waifu2x Unlimited (Swin-UNet Photo 4x) suppresses JPEG compression artifacts cleanly while preserving natural camera gradients (PSNR 28.34 dB, SSIM 0.895) in 2.63s via WebGPU, without introducing fake generative hallucinations. | Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Suitable uses · historical assessment | Privacy-conscious users, anime/illustration and natural photo creators who want 100% free, unlimited 4x local GPU super-resolution without uploading files to any cloud server | Users with a Wondershare account who occasionally need clean 2x lossless PNG upscaling |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 1024 × 1024 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048 × 2048 (true 4x lossless PNG export, supporting arbitrary large-image tiled inference) | [1024, 1024] |
| Watermark observation | Watermark-free | No watermark on the 1024×1024 native PNG export within free credits |
| Batch & API | Supports multi-model switching (Swin-UNet Art / Art Scan / Photo), 4-level denoise, and configurable tile size | Single-image upload workflow |
| Recorded free-tier dimensions | 2048 × 2048 | 1024 × 1024 |
| Attached file dimensions | 2048 × 2048 · PNG | 1024 × 1024 · PNG |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 2.63s · End-to-end reference: 2.63s | Network-observed server wait: 27.09s · End-to-end reference: 27.75s |
| Date & fixture | 2026-10-17 · anchor_upscale_v1 · US-West (California, AS2914) | 2026-10-19 · anchor_upscale_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | Account required in this test |
| Sign-in methods | 100% usable without login (runs entirely in the local browser via WebGPU) | Authorized test profile; see dated run record |
| Manual adjustment | Not verified | No manual brush refinement |
| Interaction observations | Pure single-page engineering workbench: select model (Swin-UNet Art / Photo), Denoise level, and 1x/2x/4x scale, then immediately preview or download the 2048×2048 PNG. | Historical rubric scores withdrawn pending review of the new run. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | nagadomi (waifu2x / nunif Open-Source Author) | Publicly Listed Multimedia Software Giant AI Flagship (Wondershare, 300624.SZ) |
| Recorded origin | Independent open-source AI vision researcher (Japan) | Shenzhen, China / Vancouver, Canada |
| Domain history record | 2015–Present (waifu2x.net) | Not verified |
| Background & reputation assessment | Authored and maintained by nagadomi, the creator of the iconic Waifu2x open-source repository and the nunif deep-learning framework. | Historical rubric scores withdrawn pending review of the new run. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Sensors Data (analytics.300624.com) · Google Analytics · Facebook Pixel |
| Engineering & privacy assessment | 100% local in-browser WebGPU / ONNX Runtime inference — user images never leave the local device, offering maximum privacy protection. | Historical rubric scores withdrawn pending review of the new run. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Retention statement | This flow runs locally; post-close deletion not independently verified | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 34 / 35 100% free and open-source in-browser WebGPU tool with zero paywalls, zero ad clutter, and no usage limits (01_landing.png, 02_workspace.png, 03_download.png). | 20 / 35 Historical rubric scores withdrawn pending review of the new run. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Interaction restraint | 25 / 30 Pure single-page engineering workbench: select model (Swin-UNet Art / Photo), Denoise level, and 1x/2x/4x scale, then immediately preview or download the 2048×2048 PNG. | 18 / 30 Historical rubric scores withdrawn pending review of the new run. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Background & reputation | 19 / 20 Authored and maintained by nagadomi, the creator of the iconic Waifu2x open-source repository and the nunif deep-learning framework. | 18 / 20 Historical rubric scores withdrawn pending review of the new run. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Engineering & privacy | 14.5 / 15 100% local in-browser WebGPU / ONNX Runtime inference — user images never leave the local device, offering maximum privacy protection. | 11 / 15 Historical rubric scores withdrawn pending review of the new run. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Task quality | 57.2 / 65 PSNR vs 2048px GT: 28.34 dB · SSIM: 0.895 · Edge Gradient Correlation: 0.7165 · High-Freq Sharpness Ratio: 0.5256 · Calibration Plate PSNR: 17 dB | 58 / 65 Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Deliverable specifications | 20 / 20 Exports a full 2048×2048 4x upscaled PNG (or WebP/JPEG) locally in the browser with zero watermarks and no file-count limits (20.0/20) | 16 / 20 Native file obtained; see format/dimension inspection. Same authenticated free account: uploaded 512px canonical upscaling anchor, selected default 2x, spent 2 credits, downloaded native PNG. Two free credits remain. Output and GT metrics will be inspected separately. |
| Processing speed | 10.5 / 15 Local WebGPU hardware acceleration completes 512→2048 (4x) tiled inference in just 2.63s with zero network upload overhead (14.5/15) | 8.5 / 15 Network-observed server wait was not reliably isolated; speed and aggregate scores remain unknown. |
