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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 | tools.hellokeyboard.com | BgSub | Switch / compare |
|---|---|---|---|
| Background removal | 89/100 2048 × 2048 · PNG | 75/100 2048 × 2048 · PNG | Active task |
| Image compression | 92/100 JPEG · Output attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | Hello Keyboard Tools Background removal 89/100 Seven-aspect task score Hello Keyboard Tools Background Remover is a completely free, login-free, ad-free online utility. In our standard 2048×2048 curly hair portrait benchmark, its single-call Cloudflare Images pipeline achieved 99.88% foreground recall with just 0.019% background leakage and an impressive 0.086 mad_band transition error. The service exports the full 2048×2048 transparent PNG without downscaling or watermarks, with a verified server processing time of 2.97 seconds. With transparent terms, zero login walls, and no persistent file retention, it stands out as an exceptional free option for quick background removal. Tested export 2048 × 2048 · PNG Historical test · 2026-11-06 | BgSub (In-Browser AI) Background removal 75/100 Seven-aspect task score Free, login-free on-device processing suits users who want to keep photos local; complex curls lose edge detail. Tested export 2048 × 2048 · PNG Historical test · 2026-10-16 |
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| Pricing & rules | ||
| Pricing plans | Hello Keyboard Tools site-wide free utilities · 2026-11-06 Plan · source date Monthly / one-time Annual bill / period Quota & limits Web Free2026-11-06 ↗ Free Free Free Free use across all utilities without registration; supports up to 20 MB per file depending on the tool 1 plan / billing-period records, all listed; — means that period is not recorded. The official site declares tools are free to use, require no login, no subscription, with files primarily processed locally in the browser. Cancellation, sources & verification recordCompletely free utility suite; no subscription or cancellation required. Hello Keyboard Tools homepage declaration and tool directory ↗ · 2026-11-06 Capture 1 ↗ Hello Keyboard Tools privacy and processing policy ↗ · 2026-11-06 Capture 1 ↗ | BgSub free web remover; excludes custom/API services · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits BgSub Web2026-10-20 ↗ Free Free Free Officially free; supports images up to 4096×4096 No usage-count limit published; API/batch services outside this scope 1 plan / billing-period records, all listed; — means that period is not recorded. 4096×4096 is an official supported specification; actual delivery remains tied to the historical test and attached file. Cancellation, sources & verification recordNo payment method required Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | Not verified | Completely free with unlimited usage (computation runs on user's local device via WebGL/WASM) |
| Cancellation & refunds | Completely free utility suite; no subscription or cancellation required. | No payment method required |
| Disclosure of costs & limits | Not verified | Discloses local browser execution upfront and shows exact 2048×2048 (5.53 MB) size in the save modal |
| Task quality | ||
| Measured fixture results | Edge error MAD: 0.0863 (Lower is better) · Global error SAD(k): 39.716 (Lower is better) · Foreground retention: 99.880% (Higher is better) · Background residue: 0.019% (Lower is better) | Edge error MAD: 0.1481 (Lower is better) · Global error SAD(k): 65.955 (Lower is better) · Foreground retention: 99.380% (Higher is better) · Background residue: 0.106% (Lower is better) |
| Fixture findings | On the standard curly hair portrait anchor (anchor_bgremove_v1), Hello Keyboard Tools delivered a full-resolution 2048×2048 watermark-free transparent PNG. It achieved 99.88% foreground recall with minimal 0.019% background leakage, clean hair boundary matting (mad_band=0.086, SAD(k)=39.7), and zero baked-in checkerboard artifacts. With a verified 2.97s server wait time, deliverable fidelity and performance are exemplary. | Local processing with full-size output; complex curly-hair edges look blocky and smoothed. |
| Original historical observation | Not verified | Constrained by lightweight client-side WebGL/WASM model capacity, complex curly hair outer edges show softer semi-transparent halos (mad_band=0.1481, SAD(k)=65.96) compared to heavy cloud models, but foreground recall reaches 99.38% at full 2048×2048 resolution. |
| Suitable uses · historical assessment | Not verified | Privacy-sensitive users who require 0-byte cloud upload (100% local browser execution) and unlimited no-login 2048×2048 full-resolution exports |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · Check watermark record | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048 × 2048 (preserving native dimensions, watermark-free transparent PNG) | 2048×2048 (no-login local in-browser inference exports full 2048×2048 PNG, supporting up to 4096×4096) |
| Watermark observation | Not verified | None |
| Batch & API | Not verified | Single-image interactive workspace |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 2.97s · End-to-end reference: 24.78s | Recorded local processing time: 1.77s · End-to-end reference: 1.77s |
| Date & fixture | 2026-11-06 · anchor_bgremove_v1 · US-West (California, AS2914) | 2026-10-16 · anchor_bgremove_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 | Not verified | No login in this test |
| Sign-in methods | Not verified | No login required; exports full 2048×2048 original resolution directly |
| Manual adjustment | Not verified | Left sidebar includes built-in Edit (erase/restore brush), Color, Image, Filter, and Enhance tools |
| Interaction observations | Not verified | Zero login requirement, zero marketing popups, zero cross-site redirects; processes locally in the browser and saves a 2048×2048 watermark-free PNG in one click. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Not verified | BgSub Independent Team (bgsub.com) |
| Recorded origin | Not verified | Independent Developer Project |
| Domain history record | Not verified | Launched 2022 |
| Background & reputation assessment | Not verified | Built by an independent developer team (launched 2022) and well-regarded in privacy-focused and indie web tool communities. |
| External reputation record | Not verified | Praised on Product Hunt and privacy tool directories for keeping images 100% inside the local browser. |
| Engineering & privacy | ||
| Processing location | Processing location unconfirmed | On-device processing |
| Third-party tracking record | Google Analytics · Cloudflare Web Analytics | Not verified |
| Engineering & privacy assessment | Not verified | CDP network packet inspection proves 0 bytes of image data are uploaded to any remote server—100% of segmentation inference runs locally in the browser via WebGL/WASM (15/15 privacy score). |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | This flow runs locally; post-close deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | 40 / 40 100% free with no paywalls or hidden credit limits; clicking Save Image clearly displays exact output dimensions '2048 × 2048 (5.53 MB)' before saving. | |
| Interaction restraint | 20 / 20 Zero login requirement, zero marketing popups, zero cross-site redirects; processes locally in the browser and saves a 2048×2048 watermark-free PNG in one click. | |
| Background & reputation | 21 / 25 Built by an independent developer team (launched 2022) and well-regarded in privacy-focused and indie web tool communities. | |
| Engineering & privacy | 15 / 15 CDP network packet inspection proves 0 bytes of image data are uploaded to any remote server—100% of segmentation inference runs locally in the browser via WebGL/WASM (15/15 privacy score). | |
| Task quality | 54.2 / 65 Transition band error mad_band=0.0863 · Global SAD(k)=39.716 · Foreground recall 99.88% / Background leak 0.019% | 32.9 / 65 Transition band error mad_band=0.1481 · Global SAD(k)=65.955 · Foreground recall 99.38% / Background leak 0.106% |
| Deliverable specifications | 20 / 20 True Alpha channel (8/8); Max deliverable spec: 2048 × 2048 (preserving native dimensions, watermark-free transparent PNG) | 20 / 20 True Alpha channel (8/8); Max deliverable spec: 2048×2048 (no-login local in-browser inference exports full 2048×2048 PNG, supporting up to 4096×4096) |
| Processing speed | 13 / 15 Network-observed server wait: 2.97s (API mode: sync; network upload 17.41s / end-to-end 24.78s shown for reference only, never penalized) | 13 / 15 Network-observed server wait: 1.77s (API mode: on_device_wasm; network upload 0s / end-to-end 1.77s shown for reference only, never penalized) |
