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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 | RedKetchup | Switch / compare |
|---|---|---|---|
| Image compression | 92/100 JPEG · Output attached | 92/100 2048 × 2048 · PNG | Active task |
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Browse this task →| Criterion | Hello Keyboard Tools Image compression 92/100 Seven-aspect task score Hello Keyboard Tools is a free, login-free client-side image compressor that achieves an 85.99% volume reduction (4.14 MB to 580 KB) in only 250ms at default 80% quality, reaching 42.34 dB PSNR and 0.9992 SSIM with complete local privacy and instant turnaround; as it defaults to JPEG output, users requiring transparency for PNG inputs should select the WebP format. Tested export JPEG · Output attached Historical test · 2026-11-06 | RedKetchup Image Compressor Image compression 92/100 Seven-aspect task score On-device processing retains full size for free with detailed controls; ad blocking adds a 20-second export wait, avoidable by allowing ads or paying. Tested export 2048 × 2048 · PNG Historical test · 2026-10-19 |
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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 ↗ | RedKetchup web tools and ad-free Premium account (Free / $5 One-Year / $10 Lifetime); USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Web2026-10-21 ↗ Free Free Free Free unlimited compression for PNG/JPEG/WEBP/HEIC without login; includes ads and a support countdown when ad blockers are active. Premium One-Year2026-10-21 ↗ — USD 5/year Annual USD 5 for 1 year of Premium access: removes ads (No ads) and skips download previews/countdowns (Skip previews). Premium Lifetime2026-10-21 ↗ USD 10 · one-time payment Usage / one-time Usage / one-time USD 10 one-time Lifetime Premium access: removes ads (No ads) and skips download previews/countdowns (Skip previews). 3 plan / billing-period records, all listed; — means that period is not recorded. RedKetchup online compression and bulk tools are free with all compression settings unlocked. Clicking Upgrade / REMOVE ADS opens the Upgrade to Premium modal offering two lightweight plans: USD 5 One-Year and USD 10 Lifetime to remove ads and skip download previews/countdowns. Cancellation, sources & verification recordFree tier requires no login; Premium offers USD 5 One-Year and USD 10 one-time Lifetime upgrades under official Terms. RedKetchup online compressor page and Upgrade to Premium modal ↗ · 2026-10-21 Capture 1 ↗ |
| Free & trial allowance on the test date | Completely free, no quota limits, pure client-side single-image processing (up to 20 MB) | Unlimited free local compression; adblock users wait a 20-second support countdown before final file export |
| Cancellation & refunds | Completely free utility suite; no subscription or cancellation required. | Free tier requires no login; Premium offers USD 5 One-Year and USD 10 one-time Lifetime upgrades under official Terms. |
| Disclosure of costs & limits | Page transparently outlines format choices and quality controls | Workspace settings and adblock countdown notice are clear and upfront |
| Task quality | ||
| Measured fixture results | File reduction: 85.99% · Output size: 579.8 KB | File reduction: 56.31% · Output size: 1807.8 KB |
| Fixture findings | Under the 2048px standard anchor, Hello Keyboard Tools exports a 2048x2048 full-resolution native JPEG at default settings, achieving 42.34 dB PSNR, 0.9992 SSIM, and 85.99% file size reduction with pure client-side Canvas offline processing in 250ms. | Local processing reduced this fixture by about 56% with adjustable quantisation; useful if you want parameter control. |
| Original historical observation | Hello Keyboard Tools uses client-side Canvas encoding to compress 4.14 MB down to 579.8 KB (-86.0%) at default 80% quality, achieving 42.34 dB PSNR and 0.9992 SSIM in only 250ms. | RedKetchup is one of the few tools that lets users manually pick 8-bit quantization dithering algorithms (Atkinson) and inspect pixels side-by-side in a full-screen viewer: it shrinks our 4.14 MB anchor PNG by 56.31% to 1.77 MB locally at PSNR=39.35 dB and SSIM=0.9984 (02_workspace.png, 03_download.png). |
| Suitable uses · historical assessment | Users needing fast local image compression without uploads, prioritizing privacy, and accepting JPEG/WebP formats | Developers and UI designers who want fine-grained control over PNG color depth (8/24/32-bit) and dithering algorithms with 100% local browser privacy |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | JPEG · Output attached · No watermark in test | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048 × 2048 (preserving native dimensions) | 2048×2048 (native resolution watermark-free PNG direct export) |
| Watermark observation | No watermark | Watermark-free |
| Batch & API | Interactive single-file processing, up to 20 MB per file | Offers a dedicated Bulk Image Resizer page; no external cloud API |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | Not verified | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 0.25s · End-to-end reference: 0.25s | Recorded local processing time: 2.2s · End-to-end reference: 2.2s |
| Date & fixture | 2026-11-06 · anchor_compress_v1 · US-West (California, AS2914) | 2026-10-19 · anchor_compress_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 | All features available directly without registration or login | No login required; optional $5 ad-free account login |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Offers industry-leading granular controls for PNG bit depth (8-bit / 24-bit / 32-bit) and dithering algorithms (Atkinson / Floyd-Steinberg / Sierra) plus a split-screen inspector; the only friction is the 20s timer when ads are blocked. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Not verified | RedKetchup (redketchup.io) |
| Recorded origin | Not verified | Independent Developer Toolkit |
| Domain history record | Not verified | 2021–Present |
| Background & reputation assessment | Not verified | Well-regarded independent frontend image processing toolkit (Image Resizer, Compressor, Icon Editor) actively maintained since 2021. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | On-device processing |
| Third-party tracking record | Google Analytics · Cloudflare Web Analytics | Not verified |
| Engineering & privacy assessment | Not verified | 100% client-side browser Web Worker and HTML5 Canvas execution—all PNG palette quantization and Atkinson dithering happen locally in browser memory (Blob URL) with zero server uploads. |
| Retention statement | This flow runs locally; post-close deletion not independently verified | This flow runs locally; post-close deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | 31.5 / 35 Completely free and requires no sign-up (01_landing.png, 02_workspace.png); when an adblocker is active, clicking final Download displays a transparent notice ('The download will begin in 20 seconds. To avoid the countdown... Allow ads or upgrade for $5', 03_download.png) and automatically exports the full-resolution PNG once the timer finishes. | |
| Interaction restraint | 25.5 / 30 Offers industry-leading granular controls for PNG bit depth (8-bit / 24-bit / 32-bit) and dithering algorithms (Atkinson / Floyd-Steinberg / Sierra) plus a split-screen inspector; the only friction is the 20s timer when ads are blocked. | |
| Background & reputation | 18 / 20 Well-regarded independent frontend image processing toolkit (Image Resizer, Compressor, Icon Editor) actively maintained since 2021. | |
| Engineering & privacy | 15 / 15 100% client-side browser Web Worker and HTML5 Canvas execution—all PNG palette quantization and Atkinson dithering happen locally in browser memory (Blob URL) with zero server uploads. | |
| Task quality | 58 / 65 Size Reduction: -85.99% (4137.9 KB → 579.8 KB, 7.14× ratio) · PSNR: 42.34 dB · SSIM: 0.9992 | 60.5 / 65 Default Auto-Detect (8-bit + Atkinson dithering) preserves native PNG format and shrinks 4,137.9 KB to 1,807.8 KB (56.31% reduction, 2.29× ratio) with PSNR = 39.35 dB and SSIM = 0.9984 (60.5/65) |
| Deliverable specifications | 18 / 20 Watermarked or blocked free export (0/8); Export spec: 2048 × 2048 (preserving native dimensions) | 20 / 20 100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20) |
| Processing speed | 15 / 15 Network-observed server wait: 0.25s (API mode: client_side; network upload 0s / end-to-end 0.25s shown for reference only, never penalized) | 12 / 15 Local Web Worker quantization and full-screen preview complete in ~2.2s (0s network upload; adblock users wait a 20s countdown before export) (12.0/15) |
