Techsinghge Smart Tools started with one simple annoyance: why does editing a PDF mean uploading it to a stranger's server? So we built the opposite.
Most "free" PDF tools online quietly send your file to a server somewhere, process it, and send it back. That's fine for a random resume, but not for a signed contract, a payslip, or a client's tax return. We wanted a toolkit that never asks that trade-off of you in the first place.
Techsinghge Smart Tools is built entirely with in-browser JavaScript libraries — pdf-lib, pdf.js, JSZip, PapaParse, QRCode.js and heic2any. When you drop a file into any tool, it's read straight into your browser tab's memory, transformed there, and handed back to you as a download. Nothing crosses the network. Close the tab, and every trace of your file is gone.
Not a setting you have to enable — it's the only way this site works.
No upload progress bars, no server queues. Your own device does the work.
No paywalled "pro" tier hiding basic features. Every one of the 67 tools is free to use.
We keep adding tools as long as they can run entirely client-side — that's the one rule we won't break. If there's a PDF or image task you wish existed here, tell us on the contact page.