Bigjpg
Image upscaling online tool operated by Bigjpg Team (Completely free)
Product node overview & trust baseline
Operator provenance, privacy baseline and site-wide pricing belong directly to the product node and are inherited across linked task edgesBigjpg, operated by Bigjpg Team (Cross-Platform AI Super-Resolution Team (Launched 2017)) under a "Completely free" model, scored 89/100 in our image upscaling benchmark. Overall finding: 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.
Cross-Platform AI Super-Resolution Team (Launched 2017) · 2017–present (9+ years)
Provenance baseline: 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.
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.
Pricing transparency baseline: 33/35 · Cancellation: Purchased for fixed periods (2 months, 6 months, or 1 year) via WeChat Pay, Alipay, or Stripe under official Terms of Service.
Temporary cloud cache with an instant on-page Delete button
No third-party services listed in this record; this is not proof that none exist.
Product-level pricing & rules baseline
Verified plans, billing periods and cancellation terms owned by this product node; task-specific credit costs and free export limits are detailed per capability edge belowBigjpg web and app plans (Free / Basic 2-month / Standard half-year / Pro annual); CNY · 2026-10-21
Valid for 2 months from purchase
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 record
Purchased 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 ↗
Archived official pricing sources: Bigjpg official website and pricing table modal (2026-10-21) [text snapshot ↗]
Capability map & linked task edges
Whenever a capability passes fixed-fixture testing, an edge is automatically linked between this product node and the task topic for horizontal comparison.
| Linked task edge | Score | Assessment · historical test | Test scope & delivery | Inspect capability / follow edge |
|---|---|---|---|---|
| Image upscaling | 89/100 | 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. | 2048 × 2048 · PNG Historical test · 2026-10-17 Guest flow · Fixed low-resolution fixture · Output attached |
Tested task edges (with scores and native artifacts) are strictly separated from discovered untested capabilities (unscored).
Peer product comparison across shared task edges
Matched by overlapping tested task edges; compare site-wide billing models alongside per-task benchmark scoresThe official pricing page and credit table state that guests get 5 free runs and registered Free accounts receive 10 one-time Nero Credits (Standard/Photo/Anime 2× costs 1 credit/image, 4× costs 2 credits/image, paid-only 8× costs 4 credits/image). Standard monthly is USD 21.95/month promotional (regular USD 24.99/month, 300 credits/month). The yearly promo banner displays only "7.66 USD per month" (3,000 credits/year) without printing the annual invoice total before login, so the annual total is marked unverified.
- Image upscaling：Bigjpg 89/100 vs Nero AI 84/100
Actual annual charges $59.99/$263.99. A 3-day trial is offered; cancel before expiry to avoid charges. Exact daily free count is unspecified. The 11,500-credit pack includes a current 1,500-credit bonus.
- Image upscaling：Bigjpg 89/100 vs PicWish 82/100
High-volume tiers expanded; removal costs 1 credit/image, other operations differ. Taxes are not stated on the cards.
- Image upscaling：Bigjpg 89/100 vs Cutout.pro 87/100
Actual annual amounts are $77/$278/$854. Absolute removal quotas and per-image credit usage are unpublished; 1×/5×/20× cannot be converted into image counts.
- Image upscaling：Bigjpg 89/100 vs Img2Go 84/100
Linked capability test: Image upscaling
2026-10-17 · Native output attached. Findings cover the recorded fixture and conditions; paid specifications may be untested.
Task quality
Tested scale 4×
Detailed facts & historical record
- Measured fixture results
Tested scale: 4×
- Fixture findings
The tested 4× photo configuration produced smooth output with text retained; other settings remain untested.
- 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.
- Suitable uses · historical assessment
Users wanting a no-login, zero-watermark 4x (2048px) upscaler with 5-level adjustable noise reduction for photos and illustrations
- Result & output evidence
Delivery capabilities
2048 × 2048 · PNG · No watermark in test
Detailed facts & historical record
- Recorded export specifications
2048 × 2048 · PNG · No watermark in test
- Historical specification note · not an official maximum
2048 × 2048 (Full 4x Unwatermarked PNG)
- Watermark observation
None (100% watermark-free)
- Batch & API
Multi-image queue, Windows/Mac desktop apps, and REST API
- Recorded free-tier dimensions
2048 × 2048
- Attached file dimensions
2048 × 2048 · PNG
Speed & reliability
About 20s end to end in this run; reliability not retested
Detailed facts & historical record
- Timing observation
Network-observed server wait: 18.5s · End-to-end reference: 20s
- Date & fixture
2026-10-17 · anchor_upscale_v1 · US-West (California, AS2914)
- Repeated tests & reliability
No standardized repetition count, success rate or variability range is recorded.
Interaction experience
No login in this run
Detailed facts & historical record
- Account requirements
No login in this test
- Sign-in methods
No login required; optional account login for history sync and parallel high-speed queues
- Manual adjustment
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.
Background & reputation
Bigjpg Team · Long-term reputation not independently verified
Detailed facts & historical record
- Service lifecycle notice
Not verified
- Operator
Bigjpg Team
- Recorded origin
Cross-Platform AI Super-Resolution Team (Launched 2017)
- Domain history record
2017–present (9+ years)
- 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.
- External reputation record
Not verified
Engineering & privacy
Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record
Detailed facts & historical record
- Processing location
Uploaded for cloud processing
- Third-party tracking record
Not verified
- Engineering & privacy assessment
Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage.
- Retention statement
Explicit retention period unconfirmed; inspect policy record
Task free allowance & pricing disclosure
Free tier allows 20 images/month up to 3000×3000px / 5MB at 2x or 4x with all 5 denoising levels and zero watermarks
8x and 16x options are transparently disabled in the settings modal before processing starts
Site-wide plans belong to the product node (see Product-level pricing baseline ↑).
Expand site-wide plans aligned for Image upscaling (4 records)
Bigjpg web and app plans (Free / Basic 2-month / Standard half-year / Pro annual); CNY · 2026-10-21
Valid for 2 months from purchase
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 record
Purchased 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 ↗
Evaluation basis & full scores · Overall 88.7/100
Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.
Scoring version 2.3.1 · Test fixture anchor_upscale_v1
Honesty & reputation · 92.5/100 · 30%
| Criterion | Score | Rationale | 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). | Evidence A → |
| 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. | Evidence A → |
| 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. | Evidence A → |
| Engineering & privacy | 13 / 15 | Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage. | Evidence A → |
Capability · 87/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| 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). | Evidence A → |
| Deliverable specifications | 20 / 20 | Free guest tier directly exports full 4x (2048×2048) unwatermarked PNG (20.0/20). | Evidence A → |
| Processing speed | 10.5 / 15 | Free cloud GPU 4x Photo super-resolution completed in ~18.5s (10.5/15). | Evidence A → |
Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.
Developer & citation kit · Claim updates, request benchmarks & embed verified badges
Product developers and writers can embed these SVG badges in official websites, GitHub READMEs or documentation, or use the channels below to sync product-wide plans and capabilities.
[](https://realtest.org/tools/bigjpg.com/) <a href="https://realtest.org/tools/bigjpg.com/"><img src="https://realtest.org/badges/bigjpg.com.svg" alt="Bigjpg — RealTest" height="24" /></a> 
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