165 free online tools — find what you need

Try: JSON tools · Finance · PDF · CSS & color

Your data stays on your device

Most tools on ToolStand run entirely inside your browser — no backend server touches your data. A few lookup tools (currency rates, IP address, URL fetch) call external APIs through a lightweight proxy, and each of them says so on its page. Our image resizer uses the Canvas API to scale and compress images without uploading a single pixel. The password generator and UUID generator rely on the browser's built-in Web Crypto API for cryptographically strong randomness. Even complex operations like PDF merging happen through client-side libraries — your files never leave your machine. For everything else: no uploads, no server-side processing — and never any sign-ups.

You can verify this yourself: open DevTools (F12), switch to the Network tab, and use any tool — the Base64 encoder, the hash generator, or whichever you prefer. Your inputs never appear in any outbound request: beyond static assets you’ll only see a small anonymous usage beacon to our own /api/analytics (no tool content, no identifiers — see our Privacy Policy) and, where ads run, Google’s ad and consent scripts. No hidden telemetry on your content, no background uploads of your data. This is what sets ToolStand apart from services like iLovePDF or Toolzu, which require you to upload files to their servers before processing. On ToolStand, your sensitive documents, passwords, and images stay exactly where they belong — on your device.

Practical workflow examples

Many tasks require more than one tool. Need to decode a JWT token's Base64 payload and inspect the resulting JSON? Combine our Base64 decoder with the JSON formatter. Working with log timestamps? Use the Unix timestamp converter alongside a countdown timer to coordinate deployment windows. Here are five common multi-tool workflows that save time on real projects.

🔣 JSON Formatter → Base64 Encoder

When you decode a Base64 payload and get a minified JSON blob, paste it into the JSON formatter to prettify with indentation. You can then run it back through the Base64 encoder if you need to re-encode the edited version — both tools work instantly in your browser.

⏱️ Unix Timestamp → Countdown Timer

Convert a Unix timestamp from an API response to a human-readable date using the timestamp converter, then set a countdown timer to track the deadline. Useful for scheduling social media posts, release windows, or auction end times.

📄 PDF Merge → PDF Split

Combine reports or invoices with the PDF merge tool, then extract individual pages back out with PDF split. This is handy when you need to distribute a compiled document but also provide separate files for each section.

🎨 Color Converter → CSS Box Shadow

Pick or convert a brand color using the color converter (HEX/RGB/HSL), then create a polished shadow effect with the CSS box shadow generator. The shadow generator accepts the exact color codes the converter outputs — no manual copying between formats.

🏦 Loan Calculator → Compound Interest → Currency Converter

Calculate monthly payments with the loan calculator, project long-term growth with compound interest, and convert the final amount using the currency converter. Together they cover the full financial planning workflow — borrowing, saving, and converting across currencies.

Frequently Asked Questions

Can I combine multiple ToolStand tools in sequence?

Yes — every tool on ToolStand processes data directly in your browser. You can take the output from one tool, paste it into another, and continue working. For example, format JSON, then encode it to Base64, or calculate a loan then convert the currency — all without leaving the site.

Which tools work best together for PDF tasks?

The most popular PDF workflow starts with PDF merge to combine files, followed by PDF split to extract selected pages. You can also use PDF to image to convert individual pages into PNG or JPEG format.

What is the fastest way to convert and share a color palette?

Use the color converter to switch between HEX, RGB, and HSL formats, then preview the result in the CSS box shadow generator or CSS border radius tool to see it in context. All formats copy to clipboard with one click.

How do I handle Unix timestamps from APIs?

Paste any Unix timestamp (in seconds or milliseconds) into the timestamp converter to see the human-readable date and time. If you need to track a deadline, use the countdown timer with the converted date as your target.

Are there any limits on using multiple tools?

ToolStand has no usage limits — every tool runs in your browser, so you can use as many as you need, in any combination. No account is required, and there are no daily caps or paywalls.