Simply select the tool you need from our homepage or search page, upload your file(s), choose your desired output format, and click the convert button. Your converted files will be ready for download within seconds.
Free users can upload files up to 1 GB. Paid plans support larger files — see our Pricing page for current limits per plan.
Yes! Your privacy is our top priority. ToolzStack uses a hybrid approach: many tools run entirely in your browser, meaning your file never leaves your device. When secure server processing is required, your files are encrypted during transfer and processing. We automatically delete server-processed files within 24 hours and never share them with third parties.
No. We use a browser-first approach. When supported by your device and the specific tool, files are processed locally in your browser. Files are only securely uploaded when an operation requires advanced server-side processing.
If local processing isn't available for a specific file or tool, ToolzStack will automatically seamlessly switch to our secure server processing infrastructure to complete your task.
No account is required for basic conversions. However, creating a free account allows you to save favorites, track conversion history, and access additional features. Premium accounts offer even more benefits.
We support hundreds of file formats including:
Most conversions complete within seconds to a few minutes, depending on file size and format. Premium users enjoy priority processing for faster conversions.
Yes! You can upload multiple files simultaneously and convert them in batch. This saves time and streamlines your workflow.
We offer a comprehensive suite of developer tools including JSON viewer, Base64 encoder/decoder, URL encoder, hash generator, UUID generator, code beautifier, and many more. All tools run client-side for instant results.
You can manage your subscription anytime from your account settings. Your premium features will remain active until the end of your billing period.
Try these steps first:
If the issue persists, please contact our support team with details about the problem.
If you couldn't find the answer you're looking for, our support team is here to help. Contact us and we'll get back to you as soon as possible.