ℹ️ About us

About SADH.IO

A free toolbox of 103 online tools for everyday work, made by a small team and built around privacy and simplicity.

🇮🇳 Made in India🔒 Privacy first✓ Free · No sign-in

Who we are

SADH.IO is a free online toolbox managed by a small team that likes building useful things for everyday work. We started with simple PDF tools, and visitors kept asking for more: photo and signature resizers for application forms, Telugu text converters for newsrooms, calculators for daily use. Today the site has 103 tools in four groups, and it keeps growing with what people ask for.

Our aim is simple: a task that sounds technical, like merging certificates or converting old-font Telugu to Unicode, should take a minute, cost nothing and need no software or account.

What you can do here

📄 PDF Tools (43)

Merge, split, compress, rotate, edit, sign, protect, unlock, convert to and from Word and JPG, OCR and more.

🖼 Image Tools (20)

Resize, crop, compress and convert images; make passport photos; fit photos and signatures to form sizes.

📰 Journalist Tools (21)

Non-Unicode and Unicode Telugu converters, English–Telugu tools, word counter, voice to text, news cards and clips.

🛠 Utility Tools (19)

EMI, GST, age and percentage calculators, QR codes, unit and area converters and other daily helpers.

What we believe in

Privacy first

Tools run in your browser, so your files are processed on your device.
We do not ask you to sign up or give personal details to use a tool.

Simple and honest

Clear buttons and plain language, in the way a first-time user can follow.
No fake limits, no watermark on your results, no surprise paywall.

Useful content

Every tool comes with a guide that explains the steps, common mistakes and fixes.
We update tools and guides when we find a problem or when visitors report one.

Made for India

Tools for Telugu text, Indian form sizes, GST and rupee-based calculators.
Works well on mid-range phones and slow connections.

How we build and check our tools

Each tool is tested on the common browsers on both phone and computer before it goes live. We try it with small and large files, with files that are damaged or password-protected, and with the kind of real documents people use: scanned certificates, bank statements, application photos and newspaper text. When visitors report a problem, we reproduce it, fix it and update the tool and its guide.

Results from automatic tools can never be perfect for every file. For important documents, legal text and financial decisions, please check the result yourself. Our Disclaimer explains this in detail.

How the site is funded

SADH.IO is free for everyone. To cover hosting and the time we spend improving the tools, we may show advertising on some pages. Ads are kept separate from the tools and never block them. Details on cookies and advertising are in our Cookie Policy and Privacy Policy.

Get in touch

Questions, tool requests, bug reports or feedback are always welcome. Write to contact@sadh.io or use the Contact page. Tell us what you were trying to do and which tool you used, and we will look into it.

🧰 Browse all tools ⚙️ How it works ❓ FAQs 📘 Guides

★ My Tools