Author profile
Pritam Brar
Founder of Jaggaro
Punjab, India
About Pritam
Pritam Brar is the founder of Jaggaro — the independent software company behind SnapToolz. He builds privacy-first browser tools, writes long-form technical guides on file formats, WebAssembly, and applied cryptography, and is the editorial voice behind every article on this site.
Every guide on this site is researched, written, and maintained by Pritam personally — not auto-generated, not outsourced. Articles cite primary sources (RFCs, OWASP, NIST, W3C, WHO) so claims can be checked independently, and every long-form piece links back to the actual SnapToolz tool that implements the technique under discussion.
Affiliation
Founder of Jaggaro
An independent software studio building privacy-first browser tools. Based in Punjab, India. Operates the SnapToolz product at snaptoolz.online.
Topics Pritam writes about
- Privacy-first web tools
- WebAssembly
- PDF manipulation
- Image processing
- Browser cryptography
- Static site architecture
- Progressive Web Apps
- Applied cryptography
- File format internals
- Performance engineering
Articles by Pritam
26 guidesAES vs RSA: symmetric and asymmetric encryption explained
Two encryption schemes, two different jobs. Why almost everything secure uses both — and which one is doing what when you send a file.
Jul 18, 20268 min readConceptsHow to encrypt a file with a password (and share it safely)
Encrypting a file is easy. Getting the password to the other person without undoing the whole point is the part people get wrong.
Jul 18, 20267 min readPrivacyHow to trim a video in your browser without losing quality
Why a browser trim can't always cut exactly where you clicked — and how to cut without re-encoding your whole file.
Jul 18, 20266 min readWorkflowsWhat BMI gets wrong — and when to ignore it
BMI was built to describe populations, not people. Here's what it actually measures, where it misleads, and what to look at instead.
Jul 18, 20266 min readConceptsHow to remove metadata from photos before you share them
Every photo carries hidden data — including, often, the exact GPS location it was taken. Here's how to see it and strip it.
Jul 18, 20266 min readPrivacyHow to extract a table from a PDF into Excel
Why copy-paste turns a neat table into one mangled column — and how to get PDF tables into a spreadsheet that actually adds up.
Jul 18, 20267 min readWorkflowsHow to edit a Word document without Microsoft Word
You've got a .docx and no Word licence. The free ways to edit it — and the one thing every free editor risks doing to your file.
Jul 18, 20267 min readWorkflowsHow to convert Word to PDF without losing formatting
Why converted documents come out wrong — fonts shifted, tables broken, spacing gone — and how to get one that matches the original.
Jul 18, 20268 min readWorkflowsPDF to Word conversion — what actually round-trips, and what silently breaks
PDF is a layout format. DOCX is a flow format. They're fundamentally different things, and that explains every limitation of every PDF-to-Word converter ever made.
Jun 8, 20269 min readWorkflowsResize images for the web without losing quality — practical sizing for every context
How big should a hero image actually be? A thumbnail? An OG card? Here are the real numbers, the math behind retina and srcset, and the resampling choices that matter.
Jun 8, 20267 min readWorkflowsRegular expressions — a practical primer from beginner to advanced
A small DSL for matching shapes in text. Powerful, occasionally treacherous, and well worth the afternoon it takes to internalise.
Jun 8, 202612 min readDeveloperCron expressions — the visual guide for engineers
The five-field format, the gotchas that bite everyone, and the cron flavours you'll meet in GitHub Actions, Kubernetes, and AWS.
Jun 8, 202610 min readDeveloperWhat is OCR and how accurate is it really?
Optical Character Recognition turns pixels into text. Modern OCR is astonishing on clean scans and quietly terrible on phone photos of receipts. Here's why, and how to get the best out of it.
Jun 8, 202610 min readConceptsPassword security in 2026 — what actually matters and what's mostly theatre
Length beats complexity. Don't rotate without a reason. Use a manager. Adopt passkeys when you can. Most other advice is folklore.
Jun 8, 202610 min readPrivacyAES-256-GCM encryption explained — what GCM mode actually buys you
AES is the cipher. GCM is the mode that makes it safe to use. Here's the difference, and why getting the nonce wrong is the bug that ends careers.
Jun 8, 202611 min readDeveloperJWT explained — anatomy, security pitfalls, and what to check in a token
Three base64url-encoded parts joined by dots. Most of the bugs aren't in the format — they're in how people verify it.
Jun 8, 202611 min readDeveloperEMI / loan calculator — the math behind your monthly payment
Where the EMI formula comes from, why the same rate can cost wildly different totals, and how a single extra payment per year shaves years off a mortgage.
Jun 8, 202611 min readConceptsUnderstanding BMI — what the number actually measures and what it ignores
BMI was invented in the 1830s for population statistics, not for diagnosing individuals. Here's what it really tells you, and what it leaves out.
Jun 8, 20269 min readConceptsJPG vs PNG vs WebP vs AVIF — the 2026 image format decision guide
Four formats, four different strengths, and a lot of wrong defaults out there. Here's which to use for photos, graphics, the web, email, and your phone — with real file-size numbers.
Jun 8, 202610 min readConceptsThe complete guide to PDF compression — algorithms, trade-offs, and how to hit a target size
What's actually happening inside a PDF when you shrink it, why some files refuse to get smaller, and how to land on 100 KB, 1 MB, or any other ceiling without ruining the file.
Jun 8, 20268 min readWorkflowsSet up SnapToolz for offline productivity
Install as a PWA, add the browser extension, run the desktop build — three ways to make SnapToolz feel like installed software.
May 20, 20265 min readSetupHow to privacy-clean a file before you share it
Strip the metadata, watermark the result, lock the password — all in your browser, in under a minute.
May 20, 20265 min readPrivacyA daily developer toolkit that never opens a tab to elsewhere.com
JSON, Base64, regex, hash, diff, JWT — the everyday utilities developers reach for, all in one place, all local.
May 20, 20266 min readDeveloperA browser-only image pipeline that never touches a server
Resize, compress, strip EXIF, convert format — the full prep workflow for social, blog, and email images.
May 20, 20266 min readWorkflowsOptimize PDFs for email — without uploading them anywhere
Mail servers have a 25 MB hard cap. Here's how to combine, shrink, and send a clean PDF entirely in your browser.
May 20, 20266 min readWorkflowsWhy local-first tools are faster, safer, and more dependable
The case for processing your files in the tab you already have open — not on someone else's server.
May 20, 20267 min readConcepts