Start with a useful tool
Popular tasks, chosen from the tools already available on techSA.
Browse tools by task
PDF tools
PDF Merger
Merge multiple PDF files.
PDF Split
Split PDF pages.
Rotate PDF
Rotate PDF pages.
JPG to PDF
Convert JPG to PDF.
PDF to JPG
Convert PDF pages to images.
Image & OCR tools
Image Resizer
Resize images instantly.
Signature Maker
Create digital signatures.
Image to Text (OCR)
Extract text from images.
Image Workspace
Resize, compress and convert images.
QR & barcode tools
Barcode Generator
Create downloadable barcodes.
QR Generator
Create QR Codes.
QR Scanner
Scan QR using camera.
QR Decoder
Decode QR from image.
Developer tools
JSON Formatter
Beautify & validate JSON.
URL Encoder
Encode & decode URLs.
Base64 Encoder
Encode & decode Base64.
Text Tools
Count, clean and transform text.
Color Picker
Pick colors & convert HEX/RGB.
Calculators & everyday tools
Calculators
Age, EMI & more.
BMI Calculator
Calculate Body Mass Index.
GST Calculator
Calculate GST instantly.
Percentage Calculator
Find percentages easily.
Scientific Calculator
Advanced scientific calculations.
Age Calculator
Calculate your age from date of birth.
Unix Timestamp
Convert Unix timestamps and dates.
Password Generator
Create strong passwords.
Lorem Ipsum
Generate dummy text.
Organize PDF
Reorder and keep selected PDF pages.
Extract or Delete Pages
Keep or remove specific PDF pages.
Add Page Numbers
Add page numbers to a PDF.
Watermark PDF
Add a text watermark to each page.
Repair PDF
Attempt a safe browser-side PDF rebuild.
Compare PDFs
Compare selectable PDF text page by page.
PDF to PNG
Export PDF pages as PNG images.
Text to PDF
Create a PDF from plain text.
HTML to PDF
Render simple HTML as a PDF.
Why Choose techSA?
Free online tools designed to make everyday tasks simple and fast.
techSA is a practical collection of tools and guides for everyday digital work. The tool pages explain their inputs, limits and expected output so you can decide whether they fit the task.
Many file tools use browser APIs and libraries on the page to process files you select. Some pages also load third-party libraries from CDNs; local processing is not a guarantee against every privacy or device risk. Read the privacy guide before using sensitive documents, and keep an original copy.
Learn before you use a tool
Short, practical guides to help you prepare files, check results and use online tools safely.
Original help and explainers
Practical reading for documents, QR codes, privacy and everyday calculations.
Frequently Asked Questions
Is techSA free?
Yes. All tools on techSA are completely free to use without creating an account.
Do I need to install any software?
No. All tools work directly in your web browser without any installation.
Do files leave my device?
The file-processing code in the current tools runs in the browser for the supported workflows. This site also loads third-party JavaScript libraries for some tools, so review the tool and privacy information before using sensitive material. See the Privacy Policy for the scope and limits of this statement.
Can I use techSA on mobile?
Yes. techSA is fully responsive and works on Android, iPhone, tablets and desktop computers.