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Measured on six things

Free, private browser-based PDF, Word, Excel, and study t...

Growth

Real, specific wedge — no upload, no account, no watermarks, offline — aimed at a crowded but genuinely frustrated market. Multi-segment targeting broadens reach but risks thin depth.

Screenshots

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Cromagnon

About this app

Meet Cromagnon, a free toolkit that brings useful everyday tools together in one place. Instead of visiting different websites for different tasks, you can use Cromagnon's 10 studios to work with documents, spreadsheets, presentations, images, flashcards, and more. Cromagnon is designed to be simple, fast, and easy to use. There is no account to create and no software to install. Your files stay on your device while you use the browser-based tools, helping you keep your work private. Whether you are a student organizing study materials, a professional handling documents, a developer looking for practical utilities, or a creator working with digital content, Cromagnon gives you a convenient toolkit for everyday tasks.

Key features

110 studios and 76+ tools covering PDF, DOCX, XLSX, CSV, PPTX, images, flashcards, citations, maths and invoices.
2Client-side processing: files stay on the device, no upload required, works offline as an installable app.
3Free with no account, no watermarks, no daily limits; optional free account adds sync, shared links and 50 MB cloud.
4Study Studio uses the FSRS memory model with 8 study modes and 107-language support.

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Students and lifelong learners

Pain points

Expensive study apps, uploading personal notes, limited free tiers

Primary needs

Free flashcards, PDF annotation, citation tools, offline access

Demographic

Office professionals and small businesses

Pain points

Sensitive documents uploaded to third-party servers, subscription fatigue

Primary needs

Secure PDF editing, Excel/Word compatibility, no-upload privacy

Demographic

Developers and tech workers

Pain points

Quick utilities require network requests, risking data exposure

Primary needs

Offline JSON formatter, regex tester, JWT decoder, no tracking

Demographic

Teachers and educators

Pain points

Sharing materials with students without costly platforms

Primary needs

Class codes, slide decks, worksheet creation, quiz generation

Scout Review

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

Cromagnon is a free, browser-based toolkit bundling 10 studios and 76+ tools — PDF, Word, Excel, CSV, slides, images, flashcards, citations, maths, invoices — with a privacy-first pitch: files never leave your device. The measured evidence backs the speed claim (98 mobile / 100 desktop Lighthouse) and the accessibility score (100/100 with one label mismatch). Security is competent (10/12 headers, no DMARC, no published audit). The design has a real identity rather than template SaaS. The honest caveats: two studios are 'coming soon', the changelog shows heavy recent bug-fixing, and the 'free forever' model has no visible revenue path. For students and privacy-conscious office users tired of upload-and-pray tools, it's a genuinely interesting option.

Measure by measure

Usability

No sign-up, drag-and-drop file opening, autosave, and an explicit free-forever pricing page make onboarding near-zero friction. Breadth across 10 studios risks shallow depth per tool.

Design

Distinctive cave-toolmaker branding with plate/figure numbering, consistent type pairing, and scannable studio cards with format badges. Two 'coming soon' studios slightly undercut the polish.

Speed

Lighthouse mobile 98/100 (LCP 1.2s, CLS 0, TBT 147ms) and desktop 100/100. Client-side processing means file work never waits on a server round-trip.

Security

HTTPS enforced with HSTS, CSP, frame protection and Referrer-Policy; 10/12 on header probe. Missing Permissions-Policy and DMARC. No published SOC 2 or audit found.

Accessibility

Lighthouse accessibility 100/100 with one flagged label/accessible-name mismatch. Claims 107-language support. No published WCAG statement found in the fetched content.

Growth

Real, specific wedge — no upload, no account, no watermarks, offline — aimed at a crowded but genuinely frustrated market. Multi-segment targeting broadens reach but risks thin depth.

Improvement areas

Two studios (Resume, Contract) are still 'coming soon' on the homepage.
Missing Permissions-Policy and DMARC headers; no published SOC 2/ISO/pen-test.
One accessibility label/accessible-name mismatch flagged by Lighthouse.
No visible revenue model behind the 'free forever' promise.

Design & Usability

Cromagnon's design leans into a cave-toolmaker theme with plate numbering and a disciplined serif/display pairing — unusual for a utility suite and mostly well-executed. Studio cards carry format badges (PDF, DOCX, XLSX) so you can scan what opens where. Usability is the stronger story: no sign-up, drag-and-drop file opening, autosave, and a pricing page that plainly says everything is free with no watermarks or daily limits. The risk is breadth — 10 studios and 76 tools with two still 'coming soon' means depth per tool is the open question, and the changelog's 244 fixes in 25 days suggests the surface is still settling.

Speed & Security

Speed is the standout measured result: Lighthouse mobile 98/100 with LCP 1.2s, CLS 0 and TBT 147ms, and desktop at a clean 100/100. That tracks with the architecture — files are processed in the browser, so there's no upload round-trip to wait on. Security is solid but not exceptional: HTTPS enforced with HSTS, CSP, frame protection and Referrer-Policy, scoring 10/12 on the header probe, with Permissions-Policy and DMARC missing. No SOC 2, ISO or pen-test report surfaced in the fetched material. The privacy model — files stay local unless you opt into sync — is a genuine differentiator, but the changelog's own admission that file names are logged is worth reading before you assume total invisibility.

Accessibility & Growth

Accessibility scores 100/100 on Lighthouse with a single flagged issue: one element whose visible label doesn't match its accessible name. The site claims 107-language support across studios, which is unusually broad for a free tool. No published WCAG conformance statement appeared in the fetched content, so the automated score is the main evidence. On growth: the category is crowded — Smallpdf for PDFs, Quizlet and Anki for flashcards, Google Docs for documents — but Cromagnon's wedge is concrete and defensible on principle: no upload, no account, no watermarks, offline-capable, free. The multi-segment pitch (students, teachers, office, developers) widens the funnel but risks shallow depth per studio. The domain is brand new (registered October 2026), so traction is context, not a verdict — the idea has room, the execution depth is the question.

Conclusion

If you've ever hesitated before dropping a contract, a payslip or a lecture PDF into a random online converter, Cromagnon's local-processing model is the pitch that matters — and the Lighthouse numbers suggest it isn't just marketing. The trade-off is maturity: a brand-new domain, two studios still in the oven, and a free-forever promise that will eventually need a business model. Worth trying today for the PDF, CSV, image and study workflows; worth watching to see whether the depth catches up to the breadth.

Suggestions for improvement

Publish a WCAG conformance statement and fix the one flagged label/accessible-name mismatch.
Add DMARC and Permissions-Policy headers to close the two gaps in the security probe.
Ship Resume and Contract studios or move them off the homepage until they're ready.
Publish a clear sustainability plan for the free-forever model so users can trust the long-term promise.

How we score

Alternatives comparison

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

	Cromagnon	Smallpdf	Quizlet	Anki	Google Docs Editors
Price	Free, all studios and tools	Free with daily limits; paid plans	Free tier limited; paid Plus	Free, open source	Free with Google account
Files uploaded to servers	No — processed in browser	Yes	Yes	Local; optional sync	Yes — Google Drive
Account required	No	Often	Yes	No (desktop install)	Yes — Google account
Works offline	Yes — installable app	No	No	Yes	Limited
Watermarks on free output	Never	Often on free plans	N/A	No	No
Flashcards / spaced repetition	Yes — FSRS, 8 modes	No	Yes	Yes — FSRS	No
PDF editing / annotation	Yes — annotate, sign, redact, OCR	Yes	No	No	Limited
Spreadsheet / document editing	Yes — XLSX, DOCX, CSV	Conversion only	No	No	Yes — full editors