Practical Online Tools. 100% In-Browser Privacy.
Clean, fast, ad-free utilities for spreadsheets, data conversions, and code formatting. Your data is processed locally in RAM and never uploaded to any server.
Available Tools
Engineered for speed, privacy, and functional correctness.
CSV Delimiter Converter & Fixer
Change CSV separators between comma, semicolon, tab, and pipe with auto-detection and quote-safe parsing.
CSV ⇄ JSON Converter
Transform CSV tabular data into structured JSON or flatten JSON into CSV with type inference and custom formatting.
JSON Formatter, Validator & Auto-Fixer
Beautify, validate, inspect, and automatically fix common JSON syntax errors with pinpoint line diagnostics.
Why Choose Tooltiva?
Built on transparent engineering principles to replace bloated, ad-ridden utility websites.
Zero Cloud Uploads
Your spreadsheets, API tokens, and confidential customer lists never leave your device. All parsing runs locally in browser RAM.
No Ads or Paywalls
No pop-ups, no artificial limits on rows, and no subscriptions. Get your files converted instantly with clean, respectful UX.
Never Silent Modifications
Automatic syntax repairs and delimiter transformations provide explicit change logs and interactive table previews before export.