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What happens to your browser data and files
“Runs in your browser” describes where an operation happens. It does not automatically mean a website makes no network requests, retains no progress or loads no third-party libraries.
Local transformations
Pixel Art Playground modifies an in-page canvas. Download PNG converts it into an image file. The drawing code does not upload your sprite to a project account, but a refresh can still lose unsaved work. Export, open the saved file and confirm its dimensions before clearing the board.
The Tier List Maker holds its ranking in page memory. PNG export uses html2canvas, loaded from a CDN, to capture the board. Loading that library is different from uploading your labels for processing, but it is still an external connection. Text export gives you another way to preserve a result when image export fails.
Typing practice compares your input with its prompt in the page. Its timer does not need a remote scoring request. The adaptive page stores completed lessons and per-letter progress locally, with export and deletion controls; it has no cloud account or keystroke upload. Night Loop synthesizes Web Audio instead of streaming an album. These local operations are compatible with the linked sites still loading ordinary assets and analytics.
Browser storage
The word puzzle retains progress and personal statistics in browser storage. That history belongs to the browser profile and device you used, rather than a synchronized account. Clearing site data, using an incognito session or switching devices can change what you see. Local history and the server’s aggregate daily results are separate records.
Live room data
Trivia rooms and CoilClash exchange network messages so a server can coordinate players. Display names, membership, answers or movement are part of those messages. Choose a nickname that does not identify your home, school or workplace. A room code helps friends meet in the same room; it is not account-level privacy.
Server-backed media
SaveVideo’s inspector and its download queue have different data flows. The inspector reads local video metadata in the browser. A download request sends a URL to a server, creates temporary output and serves a time-limited link. It can create job records and logs. Provider restrictions, file limits and quotas apply even if your device has plenty of memory.
The same distinction matters inside MyLinux Tools. A JSON formatter is not a server downloader. Do not infer a privacy promise for the entire catalogue from a label on one utility. Read the individual instructions before processing confidential material.
Check the output before relying on it
Try harmless sample data first. Keep the original file, verify that the export opens and compare its page count, dimensions or size with your expectations. For a support report, share the operation and error first. Send no cookies, passwords, private documents or personal media as diagnostic attachments. Our privacy policy covers the hub; the linked apps have their own disclosures.