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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.

Detailed tool comparison
CriterionQuickImageKit Image Compressor

Image compression

92/100
Seven-aspect task score

100% free and local in-browser compression with zero cloud upload, shrinking our 4.14 MB anchor by 93.33% to 276 KB (37.75 dB PSNR) in 0.54s, though PNG inputs are converted to WebP as disclosed.

Tested export WEBP · Output attached

Historical test · 2026-10-26
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →
Use tool ↗
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
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →
Use tool ↗
Pricing & rules
Pricing plans

Quick Image Kit in-browser local image utilities; completely free · 2026-10-26

Plan · source date
Monthly / one-time
Annual bill / period
Quota & limits
Free local web tool2026-10-26 ↗
Free
Free
Free Completely free without login; 100% local in-browser processing with quality slider and 50KB/100KB/200KB/500KB target-size presets, watermark-free export.

PNG inputs are converted to WebP upon export (disclosed upfront as Format: PNG → WebP)

1 plan / billing-period records, all listed; — means that period is not recorded.

The official page states that images are decoded and rendered locally in the browser without server uploads, with no paid subscriptions or credit packs; PNG inputs are exported as WebP.

Cancellation, sources & verification record

Completely free local utility with no accounts or paid subscriptions.

Quick Image Kit official image compressor and privacy notice page ↗ · 2026-10-26 Capture 1 ↗ · Capture 2 ↗

Hello Keyboard Tools site-wide free utilities · 2026-11-06

Plan · source date
Monthly / one-time
Annual bill / period
Quota & limits
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 record

Completely 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 ↗

Task quality
Measured fixture results

File reduction: 93.33% · Output size: 276 KB

File reduction: 85.99% · Output size: 579.8 KB

Fixture findings

Default Balanced mode converts the 4,137.9 KB anchor to a 276.0 KB WebP (-93.33%) with 37.75 dB PSNR and 0.9977 SSIM, keeping text and edges crisp.

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.

Result & output evidence
Delivery capabilities
Recorded export specifications

WEBP · Output attached · No watermark in test

JPEG · Output attached · No watermark in test

Watermark observation

Watermark-free

No watermark

Batch & API

Supports multi-image drag-and-drop and batch ZIP download; no external REST API

Interactive single-file processing, up to 20 MB per file

Speed & reliability
Timing observation

Recorded local processing time: 0s · End-to-end reference: 0.54s

Recorded local processing time: 0.25s · End-to-end reference: 0.25s

Interaction experience
Account requirements

No login in this test

No login in this test

Manual adjustment

Not verified

Not verified

Background & reputation
Service lifecycle notice

Not verified

Not verified

Operator

QuickImageKit (Independent Client-Side Toolkit)

Not verified

Engineering & privacy
Processing location

On-device processing

On-device processing

Retention statement

This flow runs locally; post-close deletion not independently verified

This flow runs locally; post-close deletion not independently verified

Benchmark evidence preview

Open original ↗