Data tools

About the Data tools

Data tools here solve small but frequent problems developers hit when passing data between systems — an over-escaped JSON string pulled out of a log, a JWT that needs its claims and expiry read without pasting a token into a random website, or a Unix timestamp that needs converting to a real date across seconds, milliseconds, or nanoseconds. Each tool runs entirely in your browser, so tokens and payloads you paste in never leave your device.

How ToolsVale tools are different

Every data tool listed here follows the same four rules — the same rules every tool on ToolsVale follows. You can verify each one yourself in under a minute.

Runs in your browser wherever possible

Most tools are on-device: they process your files locally using standard browser APIs. Your file never leaves your machine. Open your browser's Network tab while you use the tool — you will see zero uploads.

Explicit about server use

Some jobs genuinely need a server — fetching external URLs, running conversions that browsers cannot handle. Those tools carry a visible "server" badge on the tool page and a notice that says exactly what happens to your file and when it is deleted. No hidden uploads, no bait-and-switch.

No accounts, no daily quotas

Free means free. No sign-up wall, no watermarked outputs, no "3 conversions per day" gate. You can use every tool as many times as you need without giving us anything.

One tool, one job

Each tool does one specific job well instead of bundling twenty features into a heavy converter. That means faster pages, clearer results, and less accidental configuration mistakes.

Frequently asked questions about data tools

What data formats are supported?

The data tools work with CSV, TSV, JSON, XML, YAML, and Excel (XLSX) formats. Every tool runs in-browser so sensitive datasets never leave your device.

Are the data tools on ToolsVale really free?

Yes. Every tool in the data category is free to use with no signup, no watermark, and no daily limit. We do not sell your data or run trackers on the tool pages — you can verify this by opening your browser's Network tab while you use any tool.

Do I have to upload my files to use these data tools?

Most tools on ToolsVale run entirely in your browser — your file never leaves your device. Each tool page shows an "on-device" or "server" badge so you know before you start. Server tools are only used when the operation genuinely requires it, and files are deleted within one hour.

Is there a file size or count limit?

On-device tools are limited only by your browser's memory — typically several GB. Server tools cap uploads at a size shown on the tool page. There are no daily limits, no accounts, and no queue.

Will you keep my files or the results?

No. On-device tools never see your files at all — everything happens in your browser. Server tools hold files only long enough to process them and delete them within one hour. We do not log file contents, results, or personal data.

Do I need to create an account?

No account required for any tool. You can use every tool on ToolsVale without signing up. Sign-in only exists so you can leave comments on tools if you want to.