See your options side by side
Choose one task and 2–4 tools. Compare pricing, output, test results and trust.
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 | MagicEraser.org | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 85/100 2048 × 2048 · PNG | Compare in task topic → |
| Image upscaling | 89/100 2048 × 2048 · PNG | 89/100 JPEG · Output attached | Active task |
| Object removal | Not tested in topic | 89/100 2000×2000 (Near-Native Unwatermarked JPG) · Historical description; output not attached | Compare in task topic → |
| Image generation | Not tested in topic | 82/100 JPEG · Output attached | Compare in task topic → |
Select at least 2 tools to compare
You can also filter a task page first, then compare your shortlist.
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 | MagicEraser.org (AI Image Enhancer & Upscaler) Image upscaling 89/100 Seven-aspect task score Standard resizing and AI enhancement are clearly distinguished, with login-free trial-credit exports; this output was 1888px and tiny text was partly redrawn. Tested export JPEG · Output attached Historical test · 2026-10-16 |
|---|---|---|
| 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 ↗ | Web subscriptions, displayed top-ups and enterprise quote; USD · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits 200 Credit2026-10-20 ↗ USD 14.99 · one-time payment Usage / one-time Usage / one-time 200 general credits Rules [3] 500 Credit2026-10-20 ↗ USD 30 · one-time payment Usage / one-time Usage / one-time 500 general credits Rules [3] 2000 Credit2026-10-20 ↗ USD 70 · one-time payment Usage / one-time Usage / one-time 2000 general credits Rules [3] 5000 Credit2026-10-20 ↗ USD 90 · one-time payment Usage / one-time Usage / one-time 5000 general credits Rules [3] 10,000 credit pack2026-10-20 ↗ USD 120 · one-time payment Usage / one-time Usage / one-time 10,000 cross-tool credits Rules [4] 30,000 credit pack2026-10-20 ↗ USD 330 · one-time payment Usage / one-time Usage / one-time 30,000 cross-tool credits Rules [4] 11 plan / billing-period records, all listed; — means that period is not recorded. Verified 10,000 credits for $120 and 30,000 for $330, both one-time payments with non-expiring credits. The pricing page quantifies upscaling, restoration, editing and video use but not background removal; general credits are not asserted removal counts. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancel anytime in account dashboard Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ Large top-up package selections ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | Unlimited local WebGPU runs with zero daily caps or credit deductions | Guests receive 10 Free Credits without login; Enhance 2K costs 2 Credits per run (5 free high-res upscales) |
| Cancellation & refunds | Completely free open-source-powered tool with no accounts or subscription charges. | Cancel anytime in account dashboard |
| Disclosure of costs & limits | Explicitly discloses WebGPU browser requirements and model options at the top of the page | Clearly shows 2 Credits cost and target resolution tier before clicking Apply Changes |
| Task quality | ||
| Measured fixture results | Tested scale: 4× | Tested scale: 3.69× |
| Fixture findings | Ran 4× upscaling locally with noise reduction and text retention; speed depends on the device. | Main lettering and detail were clear; tiny letters showed some redrawing. |
| 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. | Achieves 27.34 dB full-image PSNR, 0.8878 SSIM, and a high 0.7543 edge gradient correlation (hf_ratio=0.615); carved wood grain on "REALTEST 2026" and brass knuckles are crisp, while the tiny 3rd-row micro-text on the calibration plate shows mild generative stroke reshaping. |
| 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 seeking sharp wood/metal texture enhancement (edge_corr=0.7543) with no-login near-2K unwatermarked exports |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | JPEG · Output attached · No watermark in test |
| Historical specification note · not an official maximum | 2048 × 2048 (true 4x lossless PNG export, supporting arbitrary large-image tiled inference) | 1888×1888 (Guest no-login 2K tier exports 3.69x unwatermarked JPG; supports up to 8K/16K) |
| Watermark observation | Watermark-free | No watermark |
| Batch & API | Supports multi-model switching (Swin-UNet Art / Art Scan / Photo), 4-level denoise, and configurable tile size | Available via Batch Image Editor |
| Recorded free-tier dimensions | 2048 × 2048 | 1888 × 1888 |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 2.63s · End-to-end reference: 2.63s | Network-observed server wait: 6.8s · End-to-end reference: 8.19s |
| Date & fixture | 2026-10-17 · anchor_upscale_v1 · US-West (California, AS2914) | 2026-10-16 · 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 | No login in this test |
| Sign-in methods | 100% usable without login (runs entirely in the local browser via WebGPU) | No login required (uses the shared 10 Guest Free Credits pool) |
| Manual adjustment | Not verified | Manual erase / adjustment recorded in the historical flow |
| 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. | Provides a clean 512px -> 1888px before/after comparison slider and direct browser download with zero login walls. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | nagadomi (waifu2x / nunif Open-Source Author) | MagicEraser.org / ImgUpscaler.ai Matrix |
| Recorded origin | Independent open-source AI vision researcher (Japan) | US / APAC Independent AI Team |
| Domain history record | 2015–Present (waifu2x.net) | 2023–2026 |
| Background & reputation assessment | Authored and maintained by nagadomi, the creator of the iconic Waifu2x open-source repository and the nunif deep-learning framework. | Powered directly by its sibling ImgUpscaler.ai v2 super-resolution pipeline (api-v2.imgupscaler.ai / image_enhance_v1). |
| External reputation record | Not verified | Rare transparency in explicitly warning users that standard upscaling does not add detail and pointing them to the AI Enhance tool. |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Google Analytics · Aliyun SLS Web Tracking |
| Engineering & privacy assessment | 100% local in-browser WebGPU / ONNX Runtime inference — user images never leave the local device, offering maximum privacy protection. | Completes 3.69x cloud super-resolution in 6.80s over HTTPS without disguising basic interpolation as AI upscaling. |
| Retention statement | This flow runs locally; post-close deletion not independently verified | Claims deletion within 4 hours; deletion not independently verified |
| 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). | 33 / 35 Exemplary upfront honesty: clicking the "Upscaler" tab displays a prominent notice stating "This feature performs standard upscaling and does not enhance image details. If you want to enhance image quality, please use our Enhance tool", guiding users to the true AI super-resolution Enhance module (2 Free Credits, no login required, 1888×1888 unwatermarked JPG export). |
| 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. | 28 / 30 Provides a clean 512px -> 1888px before/after comparison slider and direct browser download with zero login walls. |
| 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 Powered directly by its sibling ImgUpscaler.ai v2 super-resolution pipeline (api-v2.imgupscaler.ai / image_enhance_v1). |
| Engineering & privacy | 14.5 / 15 100% local in-browser WebGPU / ONNX Runtime inference — user images never leave the local device, offering maximum privacy protection. | 13 / 15 Completes 3.69x cloud super-resolution in 6.80s over HTTPS without disguising basic interpolation as AI upscaling. |
| 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 | 57.2 / 65 PSNR vs 2048px GT: 27.34 dB · SSIM: 0.8878 · Edge Gradient Correlation: 0.7543 · High-Freq Sharpness Ratio: 0.615 · Calibration Plate PSNR: 15.94 dB |
| 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) | 18.4 / 20 Clean unwatermarked export (8/8); Free scale factor: 3.69x (1888×1888 (Guest no-login 2K tier exports 3.69x unwatermarked JPG; supports up to 8K/16K)) |
| 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) | 12 / 15 Network-observed server wait: 6.8s (API mode: async_polling; end-to-end 8.19s shown for reference only, never penalized) |
