Privacy checklist for file converters (quick audit)
Use this checklist to quickly determine whether a “converter” is truly local or silently uploads your data.
Checklist: is it really “no upload”?
- Clear claim: the page explicitly says files never leave your browser.
- No account required: uploads often come with login/processing history.
- Network tab stays quiet: conversion should not trigger requests with your payload.
- Works after load: once assets are loaded, conversion should still work offline.
Red flags
- “Upload file to convert” flow with server progress.
- Promises about deletion/retention (a hint that uploads happen).
- Large third-party scripts unrelated to the tool’s core function.
Safer workflow
Prefer tools that parse/convert locally (CSV/JSON/XML) and provide copy/download. If you must use an online service, sanitize data first and upload only what you are willing to share.
Practical checklist (fast)
If you’re stuck, use this quick checklist to narrow the problem before you try “random fixes”. Start by validating the input format (syntax first), then confirm shape expectations (array vs object, headers vs rows). Convert a small sample, inspect the output, and only then export the full result.
- Validate: confirm the input is strict JSON/XML/CSV (no stray characters).
- Confirm shape: arrays vs objects; headers vs row lengths; repeated tags vs arrays.
- Test a sample: first 20–50 rows/items are enough to detect parsing issues.
- Export: copy/download the output and re-check it in the consumer (script/spreadsheet/API).
This workflow is privacy-first by design: All processing happens locally in your browser. Files are never uploaded.
FAQ
Can a tool be local but still load ads? Yes. The key is whether your file/content is sent anywhere. Ads should be opt-in and not coupled to conversion.
How do I verify there are no external requests? Open DevTools → Network, then perform conversion and inspect requests.
Trust note: All processing happens locally in your browser. Files are never uploaded.
Local verification snippet
Run a quick local check before export/convert:
const text = input.trim();
const value = JSON.parse(text);
console.log(Array.isArray(value) ? 'array' : typeof value);