Why use Nyxhora for this workflow
All recording and processing happens in your browser — nothing is uploaded to any server, ever
No account required to record and download — no email, no sign-up, no tracking
No telemetry, no analytics, no background processes after closing the tab — completely ephemeral
Why privacy matters for screen recording (more than you think)
Screen recordings often contain sensitive information: proprietary software interfaces, confidential financial data, private conversations visible on screen, personal accounts and passwords, medical or legal information, unreleased products. When you use a cloud-based recorder (Loom, CloudApp, Screencastify), your recording is uploaded to someone else's servers. You are trusting: their security practices, their employee access policies, their data retention policies, their compliance with privacy regulations. For personal recordings, this may be acceptable. For corporate, healthcare, legal, or financial content, it is a real risk. A local-first recorder eliminates this entirely — your recording never leaves your device. No trust required.
How Nyxhora keeps recordings private (the technical architecture)
Here is exactly how the privacy architecture works: RECORDING: Uses the browser's MediaRecorder API to capture screen, webcam, and audio as a media stream. ENCODING: WebCodecs encodes the media stream to MP4 (H.264) or WebM directly in the browser. No server involved. STORAGE: Encoded data is stored in IndexedDB — the browser's local database. This is the same storage used by offline web apps. PROCESSING: AI features (captions, noise removal, background removal) run using WebAssembly models locally. The models download once (30-50MB) then run entirely on your device. EXPORT: When you click export, the browser constructs the file and triggers a download to your device. UPLOAD: There is no upload. There is no server. There is no cloud. The application is a static website — HTML, CSS, JavaScript, and WASM models. No backend, no database, no API calls for recording data.
Who needs a private screen recorder
CORPORATE EMPLOYEES recording demos of unreleased software, internal tools, or confidential data. Using cloud recorders may violate company data policies. HEALTHCARE PROFESSIONALS recording patient data, medical software, or HIPAA-protected content. Cloud upload creates compliance risk. EDUCATORS recording student data, grades, or FERPA-protected content. Schools may prohibit cloud uploads. SECURITY RESEARCHERS recording vulnerability demonstrations. Sensitive data cannot leave the device. ANYONE RECORDING CONTENT WITH PERSONAL INFORMATION visible on screen — banking apps, medical records, personal messages, passwords. FREELANCERS working with client data — NDA-protected content should not sit on third-party servers. The common thread: content that should not exist on someone else's infrastructure.
How to verify a recorder is actually private
Do not trust marketing claims. Verify yourself: (1) CHECK NETWORK ACTIVITY — open browser DevTools (F12), go to Network tab, record something, and check if any data is sent to external servers. For Nyxhora, there should be zero upload traffic. (2) CHECK FOR ACCOUNT REQUIREMENTS — if it requires sign-in, it has a server. Local-only recorders work without accounts. (3) CHECK THE APPLICATION TYPE — a static website (HTML/JS/WASM) is inherently more private than a web app with a backend. Nyxhora is a static site. (4) CHECK PRIVACY POLICY — look for 'we do not store your recordings' and 'all processing happens locally'. (5) CHECK FOR TELEMETRY — some 'free' recorders collect usage data. Nyxhora does not. The ultimate test: can you use it with internet disabled (after initial load)? If yes, it is truly local.
How it works
Open the recorder
Navigate to the Nyxhora studio. No account or sign-in is required. The application loads entirely in your browser.
Record locally
Grant screen sharing permission. The recording is stored in your browser's IndexedDB (local database), not on any server. All processing happens on your device.
Download your recording
When finished, export as MP4 or GIF. The file is saved directly to your device. Closing the tab removes all recording data from your browser.
Frequently asked questions
Is Nyxhora really completely private?
Yes. No recording data is sent to any server. All processing happens in your browser. We cannot access your recordings because they never leave your device. The application is a static website with no backend for recording storage.
Where is my recording stored?
In your browser's IndexedDB (local database). It remains until you close the tab or clear browser data. No server copy exists. No backup exists. No one else can access it.
Can I use Nyxhora on a work computer?
Yes. No installation needed, runs in browser, no data sent to external servers. Suitable for corporate environments where software installation is restricted and data cannot leave the device.
How does this compare to OBS Studio for privacy?
OBS is also local (no cloud upload) but requires installation. Nyxhora is also local but requires no installation. Both are private. Choose Nyxhora for zero-install privacy, OBS for advanced recording features.
Related guides
Explore more workflows and features in the Nyxhora Creator Studio.