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Convert CSV, JSON, SQL snippets and inspect data structures locally.
Database & data format tools on Tentaco groups related browser tools in one place. Open a linked guide to run the matching mode — most processing stays on your device unless a tool explicitly uses an online step.
Use this collection when you need a clear starting point, short how-to steps, and privacy notes before picking a specific tool. Browse related Tentaco tools on this hub, open a studio mode when you need a fuller workspace, and keep files on your device whenever the tool runs locally.
CSV to JSON — convert table data
Turn CSV data into structured JSON (and back). Tentaco CSV to JSON Converter: review input and get an instant result — free, no sign-up.
SQL Formatter — pretty print queries
Format SQL queries with keyword casing and line breaks. Tentaco SQL Formatter: review input and get an instant result — free, no sign-up.
Data Studio online — free in your browser
CSV, TSV, query strings and table tools in one workspace. Tentaco Data Studio: review input and get an instant result — free, no sign-up.
Free developer tools online
Format JSON, test regex, encode URLs, decode JWT and more — everyday coding utilities in the browser.
JSON tools online — format, convert & validate
Format, minify, convert and inspect JSON in your browser — CSV, YAML, XML, JWT and GraphQL helpers with no upload.
Automation & cron workflow tools
Build cron expressions, validate schedules, parse crontab and save workflow presets — DevOps helpers.
Browser JSON tools — format, validate and convert
JSON formatter, minifier, CSV/YAML convert and JWT decode — all in your browser tab.
Privacy depends on the selected tool. Check the privacy block on each tool page for file transfer, processing location and storage.
LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.
This hub lists Tentaco tools and guides for database & data format tools. Each card opens a dedicated page with steps, formats and privacy details.
Most linked tools process data locally in your browser. Hybrid or online steps are labeled on the tool page.
No. Open a tool and start immediately — no registration required for core workflows.