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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 | birme.net | Pixlr | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 68/100 2048 × 2048 · PNG | Compare in task topic → |
| Image compression | 83/100 512 × 512 · PNG | Not tested in topic | Compare in task topic → |
| Image upscaling | 94/100 2048 × 2048 · PNG | 88/100 2048×2048 (PNG · 4.0x Super Scale) · Historical description; output not attached | Active task |
| Object removal | Not tested in topic | 90/100 2048×2048 (Native Full-Res No Watermark PNG/JPG/WebP) · Historical description; output not attached | Compare in task topic → |
| Image generation | Not tested in topic | 92/100 1024×1024 (Unwatermarked PNG, 1.38MB) · Historical description; output not attached | Compare in task topic → |
| Photo restoration | Not tested in topic | 69/100 JPEG · Output attached | Compare in task topic → |
| AI product background | Not tested in topic | 69/100 1024 × 1024 · PNG | Compare in task topic → |
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Browse this task →| Criterion | BIRME Image upscaling 94/100 Seven-aspect task score BIRME is one of the rare free tools that runs AI super-resolution entirely client-side via in-browser WebGPU/WASM without requiring an account. In our live test, it upscaled a 1024px input to a full 2048x2048 watermark-free native PNG in 60.3s, achieving an edge correlation of 0.6668 that significantly outperforms traditional bicubic interpolation while providing uncompromising zero-upload privacy. Tested export 2048 × 2048 · PNG Historical test · 2026-11-01 | Pixlr Express (Super Scale AI) Image upscaling 88/100 Seven-aspect task score 4× watermark-free export is fast with clear per-use credits, but free saves are limited to three per day and multiple video ads occupy the workspace. Tested export 2048×2048 (PNG · 4.0x Super Scale) · Historical description; output not attached Historical test · 2026-10-16 |
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| Pricing & rules | ||
| Pricing plans | BIRME 100% free client-side batch image processing and compression · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-11-01 ↗ Free Free Free Completely free without login; unlimited batch image processing constrained only by client memory Smart crop, format conversion (JPG/PNG/WebP/AVIF), quality compression, watermark, AI background removal and upscaling；Pure client-side execution; very large batches may consume significant browser memory；Permanently free, no renewal；Perpetual access 1 plan / billing-period records, all listed; — means that period is not recorded. All batch resizing, compression, AI background removal, and upscaling are 100% free with voluntary donation support and zero paid plans. Cancellation, sources & verification recordCancellation and refund terms unverified BIRME Official Studio ↗ · 2026-11-01 Capture 1 ↗ | All web monthly/annual tiers and five credit top-up packs · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Plus2026-10-20 ↗ USD 2.49/month USD 23.88/year Monthly 80 AI credits/month; not a dedicated removal count Rules [1] Annual 960 general AI credits/year, valid for one year Rules [2] Premium2026-10-20 ↗ USD 9.99/month USD 95.88/year Monthly 1,000 AI credits/month; not a dedicated removal count Rules [1] Annual 12,000 general AI credits/year, valid for one year Rules [2] Ultra regular2026-10-20 ↗ USD 24.99/month USD 239.9/year Monthly 5,000 AI credits/month; not a dedicated removal count Rules [1] Annual 60,000 general AI credits/year, valid for one year Rules [2] Ultra MAX2026-10-20 ↗ USD 49.99/month USD 479.9/year Monthly 10,000 AI credits/month; not a dedicated removal count Rules [1] Annual 120,000 general AI credits/year, valid for one year Rules [2] 200 AI credits2026-10-20 ↗ USD 3.99 · one-time payment Usage / one-time Usage / one-time 200 general AI credits; pack expiry not separately verified 500 AI credits2026-10-20 ↗ USD 6.99 · one-time payment Usage / one-time Usage / one-time 500 general AI credits; pack expiry not separately verified 1,000 AI credits2026-10-20 ↗ USD 9.99 · one-time payment Usage / one-time Usage / one-time 1,000 general AI credits; pack expiry not separately verified 2,000 AI credits2026-10-20 ↗ USD 16.99 · one-time payment Usage / one-time Usage / one-time 2,000 general AI credits; pack expiry not separately verified 5,000 AI credits2026-10-20 ↗ USD 30.99 · one-time payment Usage / one-time Usage / one-time 5,000 general AI credits; pack expiry not separately verified 13 plan / billing-period records, all listed; — means that period is not recorded. All four annual charges were confirmed at checkout. Ultra $239.90/year and Ultra MAX $479.90/year differ from rounded monthly equivalents multiplied by 12. The feature FAQ advertises free removal and batch ZIP export without quantifying free counts/limits. Removal credit conversion and top-up expiry are not separately stated in reviewed pages. Tax depends on billing address. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordPage states cancellation is available anytime; refund details unverified. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ Official annual checkout summaries for all four plans ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ · Capture 4 ↗ Official free removal and batch explanation ↗ · 2026-10-20 Capture 1 ↗ |
| Free & trial allowance on the test date | Completely free, no quota limits, pure client-side WebGPU processing | 50 free initial AI credits upon signup; Super Scale (2x/4x/8x) costs only 1 credit per upscale, with 3 free daily saves |
| Cancellation & refunds | Not verified | Page states cancellation is available anytime; refund details unverified. |
| Disclosure of costs & limits | Page transparently outlines all resizing and AI enhancement parameters | Super Scale panel clearly labels 'Scale up (1c)' and 25MP (5000×5000) max limit; right sidebar displays video ads |
| Task quality | ||
| Measured fixture results | Tested scale: 4× | Tested scale: 4× |
| Fixture findings | Under the 2048px standard anchor, BIRME's local WebGPU super-resolution outputs a 2048x2048 native PNG with 26.97 dB PSNR, 0.8897 SSIM, 0.6668 edge correlation (+17.9% over bicubic baseline), and 16.08 dB plate PSNR, completing in 60.3s purely offline on the client. | The tested 4× output was watermark-free with clear main lettering; inspect small text and other images separately. |
| Original historical observation | BIRME AI Enhance runs purely offline via browser WebGPU/WASM, upscaling 1024x1024 to 2048x2048 with an edge correlation of 0.6668, delivering significantly better detail than bicubic interpolation. | PSNR=26.95dB · SSIM=0.8846 (native 4x 2048×2048 unwatermarked PNG export); Edge gradient correlation edge_corr=0.6141 (+4.85% over Bicubic); high-frequency recovery hf_ratio=0.4636; Calibration plate PSNR=15.56dB: clean 'REALTEST 2026' wood sign and smooth natural brass surface rendering. |
| Suitable uses · historical assessment | Users needing no-login, 100% private, client-side AI image super-resolution without uploading files to external servers | Users needing 4x/8x high-resolution upscaling (up to 5000×5000px) combined with multi-layer canvas editing |
| Result & output evidence | No native output obtained; the preview does not establish final export quality. | |
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 2048×2048 (PNG · 4.0x Super Scale) · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. |
| Historical specification note · not an official maximum | 2048 × 2048 (PNG · 4.0x full-resolution direct export) | 2048×2048 (PNG · 4.0x Super Scale) |
| Watermark observation | No watermark | No watermark |
| Batch & API | Supports arbitrary batch processing limited only by local device memory and GPU VRAM | Supports chained 2x/4x/8x upscaling up to 5000×5000px (25MP) and multi-layer editing |
| Recorded free-tier dimensions | 2048 × 2048 | Not verified |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 60.34s · End-to-end reference: 60.34s | Network-observed server wait: 3.4s · End-to-end reference: 3.85s |
| Date & fixture | 2026-11-01 · 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 | Account required in this test |
| Sign-in methods | All features available directly without registration or login | Free login via Google, Apple, Facebook, or Email |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Displays third-party video ads along the right sidebar on the free tier and caps free local saves at 3 per day. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | BIRME Project | Pixlr Pte. Ltd. (Inmagine Group / 123RF) |
| Recorded origin | United Kingdom | Singapore |
| Domain history record | Founded in 2013 | 2008–Present |
| Background & reputation assessment | Not verified | 18-year veteran photo suite operated by Singapore's Inmagine Group (123RF), with Plus plans starting at $1.99/mo. |
| External reputation record | Continuously operating for 13 years since 2013, renowned for pure client-side privacy. | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | Google Analytics | Not verified |
| Engineering & privacy assessment | Not verified | 4x (2048×2048) upscale completed in ~3.40s and exported a 3.1MB lossless PNG (also supports JPG, WebP, PDF, PXZ). |
| Retention statement | This flow runs locally; post-close deletion not independently verified | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 29 / 35 Exceptionally fair credit pricing: whether you choose 2x (1024px), 4x (2048px), or 8x (4096px), Super Scale costs just 1 AI credit ('Scale up 1c') out of 50 free signup credits. | |
| Interaction restraint | 22 / 30 Displays third-party video ads along the right sidebar on the free tier and caps free local saves at 3 per day. | |
| Background & reputation | 18 / 20 18-year veteran photo suite operated by Singapore's Inmagine Group (123RF), with Plus plans starting at $1.99/mo. | |
| Engineering & privacy | 14 / 15 4x (2048×2048) upscale completed in ~3.40s and exported a 3.1MB lossless PNG (also supports JPG, WebP, PDF, PXZ). | |
| Task quality | 60.5 / 65 PSNR vs 2048px GT: 26.97 dB · SSIM: 0.8897 · Edge Gradient Correlation: 0.6668 · High-Freq Sharpness Ratio: 0.5048 · Calibration Plate PSNR: 16.08 dB | 56.5 / 65 PSNR vs 2048px GT: 26.95 dB · SSIM: 0.8846 · Edge Gradient Correlation: 0.6141 · High-Freq Sharpness Ratio: 0.4636 · Calibration Plate PSNR: 15.56 dB |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Free scale factor: 4x (2048 × 2048 (PNG · 4.0x full-resolution direct export)) | 20 / 20 Clean unwatermarked export (8/8); Free scale factor: 4x (2048×2048 (PNG · 4.0x Super Scale)) |
| Processing speed | 12 / 15 Network-observed server wait: 60.34s (API mode: client_side; end-to-end 60.34s shown for reference only, never penalized) | 14 / 15 Network-observed server wait: 3.4s (API mode: sync_post; end-to-end 3.85s shown for reference only, never penalized) |
