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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 | Bigjpg | SnapEdit | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 70/100 1280 × 1280 · PNG | Compare in task topic → |
| Image upscaling | 89/100 2048 × 2048 · PNG | 77/100 PNG · Output attached | Active task |
| Object removal | Not tested in topic | 71/100 1280×1280 (Small tier, with subtle bottom-right watermark) · Historical description; output not attached | Compare in task topic → |
| Photo restoration | Not tested in topic | 85/100 JPEG · Output attached | Compare in task topic → |
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Browse this task →| Criterion | Bigjpg (AI Super-Resolution Image Enlarger) Image upscaling 89/100 Seven-aspect task score Free login-free 4× output offers adjustable denoising and clear upgrade limits; detail is retained well, with about 18.5 seconds of free processing in this run. Tested export 2048 × 2048 · PNG Historical test · 2026-10-17 | SnapEdit (AI Photo Enhancer) Image upscaling 77/100 Seven-aspect task score Login-free trials and model switching are convenient, but menu dimensions mismatch the export; this result was only 2× with a watermark, with clean HD requiring Pro. Tested export PNG · Output attached Historical test · 2026-10-17 |
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| Pricing & rules | ||
| Pricing plans | Bigjpg web and app plans (Free / Basic 2-month / Standard half-year / Pro annual); CNY · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-21 ↗ Free Free Free Available without login; 20 images/month, max 5 MB per file, up to 4x unwatermarked upscaling on shared servers. Basic (2 Months)2026-10-21 ↗ CNY 35 · one-time payment Usage / one-time Usage / one-time CNY 35 for 2 months (500 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. Valid for 2 months from purchase Standard (6 Months)2026-10-21 ↗ CNY 69/6 months Other period Other period CNY 69 for 6 months (1,000 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. Pro (1 Year)2026-10-21 ↗ — CNY 138/year Annual CNY 138 for 1 year (2,000 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. 4 plan / billing-period records, all listed; — means that period is not recorded. The official pricing modal lists Free (20 images/month, max 5 MB, up to 4x upscaling) and three fixed-term tiers: Basic CNY 35 for 2 months (500 images/month), Standard CNY 69 for 6 months (1,000 images/month), and Pro CNY 138 for 1 year (2,000 images/month). All paid tiers unlock up to 16x upscaling, 50 MB upload size, priority high-performance servers, and batch processing via WeChat Pay, Alipay, or Stripe. Cancellation, sources & verification recordPurchased for fixed periods (2 months, 6 months, or 1 year) via WeChat Pay, Alipay, or Stripe under official Terms of Service. Bigjpg official website and pricing table modal ↗ · 2026-10-21 Capture 1 ↗ | Web personal free, monthly/annual and per-seat Business; excludes API · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Standard2026-10-20 ↗ USD 10/month USD 72/year Annual 4,800 credits/year; 1 credit per background removal No watermark; up to 5600px; batch processing；Requires sign-in before checkout; includes a 3-day free trial, then bills USD 72/year ($6/month equivalent) via Paddle Rules [1]Monthly 400 credits/month; 1 credit per removal No watermark, up to 5600px, batch processing PRO2026-10-20 ↗ USD 20/month USD 144/year Annual 18,000 credits/year; 1 credit per background removal No watermark; up to 5600px; batch processing；Requires sign-in before checkout; includes a 3-day free trial, then bills USD 144/year ($12/month equivalent) via Paddle Rules [1]Monthly 1,500 credits/month; 1 credit per removal No watermark, up to 5600px, batch processing Business2026-10-20 ↗ USD 15/month USD 120/year Monthly 1,000 credits/month/seat; shared credits, assets and automated workflows Annual 12,000 credits/year/seat; shared credits, assets and automated workflows 7 plan / billing-period records, all listed; — means that period is not recorded. Personal annual checkout opens a Paddle modal after login: Standard annual includes a 3-day free trial followed by USD 72/year ($6/month equivalent), and PRO annual includes a 3-day free trial followed by USD 144/year ($12/month equivalent). Business explicitly lists $120/seat/year. The free card claims no ads but conflicts with its comparison table; ad-free use is not promised. Cancellation, sources & verification recordCancel anytime; refund eligibility unverified. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ Login gate on personal annual purchase entry ↗ · 2026-10-20 Capture 1 ↗ Personal annual Paddle checkout summary (verified after sign-in) ↗ · 2026-10-21 Capture 1 ↗ |
| Free & trial allowance on the test date | Free tier allows 20 images/month up to 3000×3000px / 5MB at 2x or 4x with all 5 denoising levels and zero watermarks | 5 free coins daily; free tier exports Small tier (measured at 1024×1024 2.0x) |
| Cancellation & refunds | Purchased for fixed periods (2 months, 6 months, or 1 year) via WeChat Pay, Alipay, or Stripe under official Terms of Service. | Cancel anytime; refund eligibility unverified. |
| Disclosure of costs & limits | 8x and 16x options are transparently disabled in the settings modal before processing starts | Landing page states 5 free daily coins without sign-up; Download menu labels Free vs PRO resolution tiers |
| Task quality | ||
| Measured fixture results | Tested scale: 4× | Tested scale: 2× |
| Fixture findings | The tested 4× photo configuration produced smooth output with text retained; other settings remain untested. | Contours and text were enhanced; the free result included a translucent watermark. |
| Original historical observation | Configured to Photo + 4x + Low Noise Reduction, Bigjpg exported a clean 2048×2048 PNG scoring PSNR = 28.27 dB and SSIM = 0.9790 with smooth tonal transitions and zero generative hallucinations. | Carved wooden text "REALTEST 2026" and brass robot 5-finger joints are crisp and well-defined, with a semi-transparent SnapEdit watermark overlaid on the bottom-right calibration plate. |
| Suitable uses · historical assessment | Users wanting a no-login, zero-watermark 4x (2048px) upscaler with 5-level adjustable noise reduction for photos and illustrations | Quick portrait deblurring and 2x anime/illustration preview enhancement |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | PNG · Output attached · Check watermark record |
| Historical specification note · not an official maximum | 2048 × 2048 (Full 4x Unwatermarked PNG) | 1024×1024 (2.0x upscale, 143 KB) |
| Watermark observation | None (100% watermark-free) | Semi-transparent SnapEdit watermark in bottom-right corner (removing watermark requires PRO) |
| Batch & API | Multi-image queue, Windows/Mac desktop apps, and REST API | Supports batch upload & processing (PRO) |
| Recorded free-tier dimensions | 2048 × 2048 | 1024 × 1024 |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 18.5s · End-to-end reference: 20s | Network-observed server wait: 3.36s · End-to-end reference: 4.21s |
| Date & fixture | 2026-10-17 · anchor_upscale_v1 · US-West (California, AS2914) | 2026-10-17 · 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 | No login required; optional account login for history sync and parallel high-speed queues | No login required (5 free daily coins, 2 coins per upscale) |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Zero registration, zero popups, and zero watermarks: once processing completes, a green "Download (274.41 KB)" button directly exports the full 4x (2048×2048) PNG. | Zero-popup no-login entry into the workspace with 4 enhancement modes (Standard / Art & Illustration / Restore / Colorize). |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Bigjpg Team | SilverAI (SnapEdit Team) |
| Recorded origin | Cross-Platform AI Super-Resolution Team (Launched 2017) | Vietnam / Singapore (SilverAI) |
| Domain history record | 2017–present (9+ years) | snapedit.app (globally recognized AI photo restoration & editing platform) |
| Background & reputation assessment | Operating continuously since 2017 as one of the best-known Waifu2x / SRCNN deep convolutional super-resolution services across Web, Windows, macOS, iOS, Android, and API. | Developed by SilverAI, creator of the globally popular SnapEdit AI photo enhancement and restoration suite. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Not verified |
| Engineering & privacy assessment | Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage. | Completes 2x super-resolution via be-prod-web.snapedit.app/api/enhance/v1 in 3.36s pure server time. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 33 / 35 Anonymous guests can upload the 512×512 test image and open the clean configuration modal (Artwork/Photo, 2x/4x free, 5 noise reduction levels: None/Low/Medium/High/Highest), with only 8x/16x grayed out and labeled "Upgrade for 8x/16x" (02_workspace.png, 03_download.png). | 22 / 35 Landing hero states "Try it free with 5 credits a day, no sign-up needed" (01_landing.png); uploading the 512×512 test image automatically spends 2 coins to complete enhancement, and the Download menu lists Small (labeled 1280×1280) as free, exporting a 1024×1024 (2.0x) JPG with a semi-transparent bottom-right SnapEdit watermark while 1920p and unwatermarked 4× Original require PRO (03_download.png). |
| Interaction restraint | 28.5 / 30 Zero registration, zero popups, and zero watermarks: once processing completes, a green "Download (274.41 KB)" button directly exports the full 4x (2048×2048) PNG. | 25 / 30 Zero-popup no-login entry into the workspace with 4 enhancement modes (Standard / Art & Illustration / Restore / Colorize). |
| Background & reputation | 18 / 20 Operating continuously since 2017 as one of the best-known Waifu2x / SRCNN deep convolutional super-resolution services across Web, Windows, macOS, iOS, Android, and API. | 17 / 20 Developed by SilverAI, creator of the globally popular SnapEdit AI photo enhancement and restoration suite. |
| Engineering & privacy | 13 / 15 Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage. | 14 / 15 Completes 2x super-resolution via be-prod-web.snapedit.app/api/enhance/v1 in 3.36s pure server time. |
| Task quality | 56.5 / 65 4x Photo mode (Low noise reduction) exported a native 2048×2048 unwatermarked PNG achieving full-frame PSNR = 28.27 dB and SSIM = 0.9790, suppressing JPEG block artifacts while preserving clean structural geometry and color accuracy (56.5/65). | 50.7 / 65 PSNR vs 2048px GT: 26.87 dB · SSIM: 0.8844 · Edge Gradient Correlation: 0.6071 · High-Freq Sharpness Ratio: 0.4386 · Calibration Plate PSNR: 15.31 dB |
| Deliverable specifications | 20 / 20 Free guest tier directly exports full 4x (2048×2048) unwatermarked PNG (20.0/20). | 11 / 20 No free unwatermarked export (0/8); Free scale factor: 2x (1024×1024 (2.0x upscale, 143 KB)) |
| Processing speed | 10.5 / 15 Free cloud GPU 4x Photo super-resolution completed in ~18.5s (10.5/15). | 14.2 / 15 Network-observed server wait: 3.36s (API mode: sync_post; end-to-end 4.21s shown for reference only, never penalized) |
