Web development in Tamil
121 free browser tools and 2 extensions
The admission form, ready by evening.
Photo resized, certificates merged into one PDF, submitted on time.
Small browser tools, extensions, Thirukkural and Kolam, made for days like these.
Results appear below as you type. Use the arrow keys and Enter, or Tab through them.
Tools for every job
121 free tools in 12 groups. Nothing is uploaded, no sign-up.
- PDF27Merge, split, compress, sign, edit, protect, convert
- Certificates & cards5Certificates, ID cards, badges, visiting cards and stamps, one or thousands
- Documents3GST invoices, receipts and resumes as clean PDFs
- Image16Form photos, passport photos, crop, watermark, collage, compress, resize
- Calculators8EMI, GST, income tax, SIP, age, percentage, dates and units
- JSON & data12Format JSON, convert CSV, Excel, YAML and XML
- Text13Case, counts, editors, diff, regex, lorem
- Encode & hash8Base64, URL, JWT, hashes, passwords, UUIDs
- Design6CSS generators, colours, SVG
- Typing3Speed test, touch typing lessons with a finger guide, adaptive practice
- Tamil3Tamil typing in English letters, old font to Unicode, on-screen keyboard
- Utilities17Timers, spin wheel, zip, chat links, QR codes, barcodes, mic and webcam test
Most used
Passport photos, PDFs, resumes and the other small jobs that come up every week.
- NewPassport photo makerStandard sizes, white background and a print sheet of 8 or 16.
- NewPhoto and signature resizer for formsExact KB and pixels for exam, job and KYC forms.
- Merge PDFCombine PDFs in the order you want, with page ranges.
- Compress PDFShrink the images inside; text stays sharp.
- Image compressorHit a target size such as under 100 KB, in bulk.
- NewResume builder30 samples, 13 templates, resume score and job match.
- NewGST invoice generatorLogo, HSN, CGST, SGST or IGST, amount in words; PDF.
- NewCertificate makerTemplates, drag and drop, names from Excel, thousands at once.
- NewEMI calculatorMonthly EMI, total interest and the full schedule.
- NewTamil typingType in English letters, get Tamil as you type.
- NewTyping testWPM, accuracy and consistency with a live graph; time, words, quote or your own text.
- QR codeLinks, Wi-Fi, contacts, UPI, app links. Logo, styles, frames.
Browser extensions
Capture a whole page or record your screen, for Chrome, Edge and Firefox.
- Full Page ScreenshotCapture a whole page, the visible area or a selection. Mark up, blur, and save as PNG, JPG or PDF.The whole page in one clickClean long capturesVisible area or a selectionChromeEdgeFirefoxFree
- Screen RecorderRecord a tab or your screen with camera and mic. Cut, zoom, blur and export up to 4K. No account, no watermark.Tab, window or screenCamera bubbleClear voiceChromeEdgeFree
தமிழ் · Tamil classic
திருக்குறள்
1330 kurals by திருவள்ளுவர் on palm leaves, with six Tamil commentaries, English, word-by-word pronunciation, audio and daily practice.
திருக்குறள் கற்க · Start learningArt at the doorstep · வாசல் கலை
Kolam · கோலம்
Watch a kolam come alive line by line, trace it with your finger, then make one that is all your own. A fresh design every morning.
- Kolam
- Rangoli
- Muggulu
- Pookkalam
- Alpana
- Mandana
- Aipan
- Chowk purna
Start with these
One video from each of the most popular series. The full list is on the courses page.
Tips for improving your daily workflow
Scheduling your tasks with ease: a crontab tutorial
Python for beginners: uncovering the essentials (Tamil)
Is your Python function making this common mistake with lists?
Why sdev
Tamil and English
Concepts explained in the language you think in, without dumbing anything down.
Private by design
Every tool runs in your browser. Nothing you paste or upload leaves your device.
Free, no sign-up
No accounts, no paywalls. Open a page and start learning or converting.
Frequently asked questions
Are the sdev courses free?
Yes. Every course is a free YouTube video. There is no sign-up, paywall or hidden premium tier.
Which languages are the courses in?
Most web development and Python fundamentals are taught in Tamil. The pdfmake and Flask series are in English. Each section on the courses page is labelled with its language.
Are the developer tools private?
Yes. Every tool, from JSON to Excel to the text case converter, runs entirely in your browser. Your files and text are never uploaded to a server.
Who runs sdev?
sdev is an independent project from India that builds free courses, browser-based tools and extensions, and teaches what it learns along the way.