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Measured on six things

AI-powered gameplay clip editor with Valorant auto-detect...

Speed

Desktop Lighthouse 97/100 but mobile 63/100 with LCP 6.7s and FCP 5.8s — the landing page is heavy on mobile. Product-side, the claimed 49x GPU detection speedup is a real, specific benchmark.

Screenshots

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GLworm

About this app

GLworm is a Windows-based gameplay clip editor that trims, merges, captions, and exports 9:16 vertical clips from your existing recordings. Unlike traditional recorders, it reads your MP4, MKV, MOV, or WebM files and uses AI to automatically detect key moments in Valorant, such as aces, headshots, and kills. The app runs locally on your PC, ensuring privacy and offline functionality. With a free forever plan that includes manual editing, merging, and 9:16 export without watermarks, and a paid plan ($6/month) that adds automatic Valorant detection, the Workshop, bulk storage cleanup, side-by-side clips, and manual reel building. New users get a 7-day free trial with full features, no credit card required. GLworm is perfect for gamers who want to quickly create shareable highlights for TikTok, YouTube Shorts, and Instagram Reels without complex editing. Its standout features include GPU-accelerated detection (49x faster on DirectX 12), a user-friendly editor with text, stickers, GIFs,...

Key features

1Reads existing MP4/MKV/MOV/WebM recordings instead of capturing gameplay — no second process running during matches.
2AI kill-feed detection for Valorant: aces, headshots, kills, knives, deaths and rounds, auto-cut with padding.
3Local-only processing with no upload, no cloud library, and original files never modified.
4Free forever tier: trimming, merging, text/sticker/GIF editor, sound timeline and 9:16 export with no watermark.
5$6/month plan adds auto-detection, the Workshop, bulk storage cleanup, side-by-side clips and manual reel building.
67-day full-feature trial with no credit card required.

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Valorant players and content creators

Pain points

Manual clip editing is time-consuming; missing epic moments; complex software.

Primary needs

Automatic detection of highlights; quick export to vertical format; free or affordable.

Demographic

Casual gamers who record with Xbox Game Bar or OBS

Pain points

Limited editing skills; no time to scrub through hours of footage; watermark on free tools.

Primary needs

Easy trimming and merging; no watermarks; intuitive interface; free forever.

Demographic

Social media influencers focused on TikTok and Reels

Pain points

Need to repurpose landscape gameplay into vertical; add captions and effects; fast turnaround.

Primary needs

One-click 9:16 conversion; text/stickers/GIFs; background audio control; local processing.

Scout Review

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

GLworm is a Windows clip editor with a genuinely smart positioning: it doesn't record, it reads the MP4/MKV/MOV/WebM files your existing recorder already wrote, then uses AI to find aces, headshots and kills in Valorant. Everything runs locally, nothing is uploaded, and the free forever tier covers trimming, merging, the text/sticker/GIF editor and 9:16 export with no watermark. The $6/month plan adds automatic Valorant detection, the Workshop, bulk cleanup and side-by-side clips, with a 7-day full trial and no card required. The landing page is polished and the desktop performance is excellent, though mobile Lighthouse drags at 63/100. Security headers are mostly there but incomplete, and there's no published audit. The real question is scope: auto-detection is Valorant-only, which is a narrow wedge for a $6 subscription, and the manual editing that works for every game is the part that's free. It's a well-built tool with a clear audience and a real privacy story — it just needs to prove the detection is worth paying for beyond one game.

Measure by measure

Usability

Free forever tier covers trimming, merging, editor and 9:16 export with no watermark, plus a 7-day full trial with no card. Onboarding is folder-or-drag simple. No public docs or help center found.

Design

Clean dark landing page with disciplined typography, numbered step flows and stat callouts. The site is marketing; the actual Windows app UI is only glimpsed via screenshots, so app-level polish is unverified.

Speed

Desktop Lighthouse 97/100 but mobile 63/100 with LCP 6.7s and FCP 5.8s — the landing page is heavy on mobile. Product-side, the claimed 49x GPU detection speedup is a real, specific benchmark.

Security

HTTPS enforced with HSTS, plus X-Content-Type-Options, Referrer-Policy, SPF and DMARC. Missing CSP, frame protection and Permissions-Policy. Local-only processing is a genuine privacy advantage; no audits published.

Accessibility

Lighthouse accessibility 95/100, with only contrast and a missing main landmark failing. No WCAG statement or a11y documentation published, and the site is English-only.

Growth

Real, specific wedge: post-capture editing for players who already record, local-only, free forever without watermarks. Valorant-only auto-detection limits the addressable base, but the manual editor works for any game.

Improvement areas

No public help center, changelog or troubleshooting docs — only a short FAQ.
Mobile Lighthouse performance 63/100 with LCP 6.7s; desktop is 97/100.
Security headers incomplete: no CSP, frame protection or Permissions-Policy (8/12 checklist).
Auto-detection limited to Valorant, narrowing the paid tier's value for other games.

Design & Usability

GLworm's site is a well-built dark landing page: numbered step flows, a clear 'we don't record, we read' positioning, and stat callouts that actually say something. The design work is on the marketing side — the Windows app itself is only visible through screenshots, so app-level polish is unverified. Usability is where the product's real promise lives: a free forever tier that covers trimming, merging, the text/sticker/GIF editor and 9:16 export with no watermark, plus a 7-day full trial with no card required. Onboarding is folder-or-drag simple, and detection runs when you open the app. The gap is documentation — the fetched site shows a FAQ but no help center, no changelog, and no troubleshooting guide for when detection misreads a kill feed. For a tool whose entire value is 'trust the AI to find your aces,' that's a meaningful hole.

Speed & Security

Speed is a tale of two devices. Desktop Lighthouse lands at 97/100, but mobile sits at 63/100 with an LCP of 6.7s and FCP of 5.8s — the landing page is heavy for anyone arriving from a phone link, which is ironic for a product aimed at people who share clips to TikTok. On the product side, the claimed 49x GPU detection speedup is a specific, falsifiable benchmark (59ms on DirectX 12 vs 2.9s without), which is more than most indie tools offer. Security is solid-but-unremarkable: HTTPS with HSTS, X-Content-Type-Options, Referrer-Policy, SPF and DMARC are all in place, but CSP, frame protection and Permissions-Policy are missing (8/12 on the header checklist). The local-only processing model is a genuine privacy advantage over cloud clippers like Medal, and the 'your file is never modified' guarantee is a nice touch. No SOC 2, ISO, pen-test or bug bounty is published — normal for this stage, but it caps the score.

Accessibility & Growth

Accessibility scores well on the automated audit at 95/100, with only two failures: insufficient color contrast and a missing main landmark. Both are fixable in an afternoon. What's missing is the human layer — no accessibility statement, no WCAG conformance claim, no keyboard-navigation documentation, and the site is English-only. For a consumer gaming tool that's not unusual, but it's the difference between 'passes the audit' and 'actually accessible.' Growth is the more interesting question. GLworm's wedge is genuinely sharp: it doesn't record, it reads the footage you already have from Game Bar, OBS, ShadowPlay or Medal. That sidesteps the two listed alternatives entirely — Medal and Outplayed both want to be running during your match, and both push you toward cloud upload. GLworm's local-only, no-watermark, free-forever editing tier is a real reason to pick it. The limit is scope: automatic detection is Valorant-only today, which caps the addressable audience at one game's player base, and the $6/month plan is essentially paying for that one feature plus the Workshop. The manual editor works for any game, which is the real growth path — but it's also the part competitors give away.

Conclusion

If you're a Valorant player who already records with Game Bar or OBS and then spends an hour scrubbing footage for your aces, GLworm is aimed directly at you, and the free tier means the downside is a download. The local-only processing is a real advantage over Medal and Outplayed, and the 49x GPU detection claim is specific enough to be checkable. What would move this from 'interesting' to 'recommended' is broader game support for auto-detection and actual documentation for when the kill-feed reader gets it wrong. Until then, treat it as a strong free editor with a paid Valorant shortcut attached — which, honestly, is not a bad thing to be.

Suggestions for improvement

Publish a real help center with troubleshooting for detection misses, not just a 7-question FAQ.
Add CSP, frame protection and Permissions-Policy headers to close the 8/12 security checklist gap.
Fix the mobile Lighthouse LCP (6.7s) — a clip-sharing tool shouldn't load slowly on phones.
Fix the two failing a11y audits (contrast, main landmark) and publish a short accessibility statement.

How we score

Alternatives comparison

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

	GLworm	Medal.tv	Outplayed
Recording method	Reads existing recordings (MP4/MKV/MOV/WebM); no capture during play	Records gameplay live and uploads clips to the cloud	Records gameplay live with automatic highlight capture
Processing location	100% local on your PC; nothing uploaded	Cloud upload and processing required	Local capture, cloud sharing
Automatic highlight detection	Valorant only (aces, headshots, kills, knives, deaths, rounds)	Automatic clipping across many supported games	Automatic highlights for Fortnite, Valorant and others
Free tier watermark	No watermark on any export, free forever	Limited free features; watermark/limits apply	Free tier with feature limitations
9:16 vertical export	One-step crop-to-fill or blurred background, with burned-in text/stickers	Basic vertical export; limited editing	Vertical export available; limited editing tools
Pricing	Free forever editing; $6/month for auto-detection and Workshop	Free tier plus paid subscription for premium features	Free with premium tier