Cycling through all six. Tap any point to stop.

Measured on six things

Small desktop tools such as ones that shrink videos and images without losing perceived quality, plus a free multi-monitor switcher.

Security

HTTPS, CSP, SPF and DMARC are in place, and local-only processing removes most server-side risk. Missing HSTS, frame protection, and several hardening headers; no published audits.

Screenshots

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KitKarl

About this app

KitKarl is the small software shop of Karl Dominik. I build desktop tools that run entirely on your own machine. Video Squisher shrinks your videos automagically. Pick the quality you want in plain words. The program analyzes your video and automatically picks the best compression settings for that particular video. Local, private, no uploads. Windows, Mac, Linux. Image Squisher makes ANY format of images smaller or converts them to a different format: JPG, HEIC, camera RAW, animated files and PDFs. You pick the quality in plain words, it analyzes what compression works best for your image, and verifies its output against your original. EdgePop is a free multi-monitor switcher for Windows: hover the screen edge, click the window you want. About 2 MB. ScriptBridge fixes screenplay formatting at scriptbridge.app. Convert and manipulate your scripts in ANY format! They F'd up is a tracker for Microsoft's mistakes at theyfdup.com. See what Microsoft has screwed up now!

Key features

1Image Squisher: batch HEIC/RAW/JPG/PDF conversion with plain-word quality presets and output verification against the original.
2Video Squisher: drag-and-drop 4K compression with automatic per-video settings and visually lossless results.
3EdgePop: ~2 MB multi-monitor window switcher for Windows 10/11 with live thumbnail previews at screen edges.
4All tools run entirely locally — no uploads, no accounts, no ads, free to use.

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Photographers and content creators with large photo libraries

Pain points

Slow batch processing, loss of quality when compressing, HEIC/RAW conversion hassles

Primary needs

Fast, quality-preserving image compression; batch conversion; metadata stripping

Demographic

Videographers and drone enthusiasts storing hours of 4K footage

Pain points

Hard drive space exhaustion, complex encoding settings, quality loss

Primary needs

Simple drag-and-drop video compression with visually lossless results

Demographic

Multi-monitor power users on Windows

Pain points

Clunky window switching between screens, losing track of open apps

Primary needs

Instant window previews at screen edges for quick navigation

Scout Review

Written by AI from measured evidence, scored out of 100.

KitKarl is a one-person software shop with three genuinely useful desktop utilities and one joke site. The strongest asset is honesty: real before/after file sizes, clickable zoom, and a quality slider that maps directly onto the app's own control. Image Squisher and Video Squisher solve real problems — HEIC/RAW conversion, 4K footage bloat, batch resizing — with a privacy-first local-only architecture that cloud competitors can't match. EdgePop is a clever 2 MB multi-monitor switcher. The weaknesses are all in the wrapper: a stock-photo hero, low-contrast helper text, a repetitive long homepage, missing security headers, and a mobile LCP of 8.7 seconds. None of these are hard to fix, and fixing them would let the actual product — which is good — do the talking.

Measure by measure

Usability

Plain-word quality sliders, a clear 'Meet [Product]' CTA per section, and free no-account downloads make onboarding obvious. The long repetitive homepage and sparse nav cost it points.

Design

Real before/after file-size comparisons and a disciplined three-step app UI carry the design. Undercut by a stock grass-and-sky hero, low-contrast helper text, and a cropped EdgePop illustration.

Speed

Desktop Lighthouse 91/100 but mobile 71/100 with an 8.7s LCP — the hero imagery and demo assets drag first paint on phones. CLS 0 and TBT 0ms show the code itself is lean.

Security

HTTPS, CSP, SPF and DMARC are in place, and local-only processing removes most server-side risk. Missing HSTS, frame protection, and several hardening headers; no published audits.

Accessibility

Lighthouse a11y 95/100 with responsive layout and plain-language labels. Failing contrast, missing main landmark, and mismatched accessible names keep it from the top of the band.

Growth

Three specific niches (photo libraries, 4K footage, multi-monitor Windows) with a real privacy-first local wedge vs HandBrake and TinyPNG. Early stage; no traction signals yet.

Improvement areas

Replace the stock grass-and-sky hero with a real product screenshot or the before/after comparison.
Fix the 8.7s mobile LCP by compressing hero and demo imagery.
Add missing security headers: HSTS, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, frame protection.
Increase contrast on small grey helper text and add a <main> landmark for accessibility.

Design & Usability

The strongest design decision on the site is showing real file sizes — 20.8 MB to 990 KB, 936.8 MB to 36.4 MB — with clickable zoom so you can try to spot the difference yourself. That's proof, not marketing. The app UI mirrors the homepage with a five-step quality slider (Smallest through Original) and a RECOMMENDED tag, so the demo and the product speak the same language. Usability is solid: every section ends with one clear 'Meet [Product]' CTA, downloads are free with no account, and the disabled 'Squish images' button makes the next step obvious. What drags both scores down is the wrapper: a stock grass-and-sky hero that reads as template, low-contrast grey helper text, a cropped EdgePop illustration, and a homepage so long and repetitive you scroll past the same three-button bar three times before reaching the last product.

Speed & Security

Speed is a tale of two devices. Desktop Lighthouse lands at 91/100 — the code is lean, CLS is 0, TBT is 0ms. Mobile drops to 71/100 with an 8.7-second LCP, which is the hero imagery and demo assets choking first paint on a phone connection. Fixing that is mostly image optimization, not architecture. Security is the weakest measured dimension: HTTPS, CSP, SPF and DMARC are configured, but HSTS, frame protection, X-Content-Type-Options, Referrer-Policy and Permissions-Policy are all missing — 6 of 12 checklist points. The saving grace is architectural: every product runs entirely on your machine with no uploads, so there's no server-side data store to breach. No published SOC 2, ISO, or pen-test documentation exists, which is normal for a solo shop but still leaves buyers without a compliance paper trail.

Accessibility & Growth

Accessibility scores 95/100 on Lighthouse, which is genuinely strong for an indie site. The remaining failures are fixable in an afternoon: insufficient color contrast on the small grey helper text, a missing <main> landmark, and visible text labels without matching accessible names. There's no published WCAG conformance statement, but the responsive layout and plain-language quality labels already do a lot of the work. Growth is a judgment call on the idea, not the traction. The domain is 0.3 years old with no visible community yet, but the positioning is specific: photographers drowning in HEIC and RAW, videographers with hours of 4K footage, and multi-monitor Windows users who want instant window previews. Against HandBrake the wedge is plain-language presets instead of a settings maze; against TinyPNG it's local desktop batch processing with video and RAW support. The privacy-first local angle is a real differentiator as cloud tools face data-handling scrutiny — but three unrelated utilities plus a Microsoft tracker under one brand dilutes the story.

Conclusion

If you're a photographer with a bloated library, a videographer with a full drive, or a Windows user juggling three monitors, KitKarl's tools are worth a download — they're free to try, they run locally, and the quality claims are backed by real files you can inspect. The site just needs to get out of its own way: swap the stock hero for a product screenshot, bump the helper text contrast, add the missing security headers, and compress the homepage images the way the app compresses everything else. A solo shop shipping three working utilities plus a Microsoft tracker is exactly the kind of indie software worth rooting for — it just needs a landing page that trusts its own product as much as the product deserves.

Suggestions for improvement

Replace the stock grass-and-sky hero with a real product screenshot or the before/after comparison — lead with proof, not a meadow.
Increase contrast on the small grey helper text under demos and sliders to pass WCAG AA.
Add HSTS, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and frame protection headers — five quick wins.
Compress the hero and demo images to fix the 8.7s mobile LCP; the tool that shrinks videos should shrink its own homepage.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	KitKarl	HandBrake	TinyPNG
Video compression	Yes — Video Squisher with plain-word quality presets and automatic per-video settings	Yes — extensive manual encoding settings, steeper learning curve	No — images only
Image compression	Yes — Image Squisher, local desktop batch with HEIC/RAW/PDF support	No — video only	Yes — web-based, JPG/PNG/WebP, no RAW or HEIC
Local processing (no uploads)	Yes — all tools run entirely on your machine	Yes — desktop app, fully local	No — files uploaded to web service
Plain-language quality presets	Yes — Smallest, Smaller, Balanced, Near Original, Original	No — codec and bitrate settings require technical knowledge	Partial — simple but limited to a few quality levels
Multi-monitor window switching	Yes — EdgePop, ~2 MB Windows utility	No	No
Pricing	Free to use; paid purchase option available	Free and open source	Free tier with paid Pro plan