Who is the founder and developer of ExamMint?

Humayan Al Rosid (online handle humayanx) is the founder and lead developer of ExamMint. His projects include ExamMint educational utilities and Project12 Bengali application templates and paperwork guides.

What tools are included in the ExamMint ecosystem?

ExamMint features ExamMint Resizer (resizer.exammint.in with 121 exam presets), ExamMint Academic (academic.exammint.in with 103 tools across 15 universities), ExamMint OMR (omr.exammint.in for 20+ competitive exams), ExamMint Verify (verify.exammint.in), Age Calculator (age.exammint.in), JEE Predictor (jee.exammint.in), and ExamMint for Institutes (exammint.in/for-institutes).

How does ExamMint protect user privacy?

ExamMint applications operate on a 100% client-side, zero-server architecture. All image processing, grade calculations, verification searches, and rank predictions execute locally inside your web browser using WebAssembly and local storage without uploading files or data to external servers.

Can coaching institutes, bloggers, and businesses hire ExamMint to build custom web tools?

Yes. Through ExamMint for Institutes, Humayan builds custom educational web tools with institute branding and domain integration. Hosting, maintenance, and delivery timelines depend on the agreed project scope.

Useful software.
Thoughtfully built.

I’m Humayan Al Rosid, the developer behind ExamMint and Project12. I turn everyday friction into tools that people can actually use.

Explore my work GitHub

BASED IN MURSHIDABAD, INDIA
Building for problems close to home.

SevenWeb projects showcased

TwoBrands · ExamMint & Project12

ThreeOpen-source projects

01 / SELECTED WORK

Built to solve something.

Independent projects, from idea to implementation.

01 — EXAMMINT RESIZER● Live

Less file friction.
More privacy.

Exam applications need precise photos and signatures. This tool gets them ready without uploading personal documents to a server.

RustWebAssemblyWeb Workers

Explore Resizer

THE PROCESSING PIPELINE

▧YOUR IMAGE

WRust + WASM

▧EXAM READY

◎ Files stay on your device121 exam presets

Lanczos3 resampling / HEIC decoding / target KB compression

1.8M+Organic Google search clicks

56,098Peak clicks in a single day

9.5 monthsResizer reporting period

Under the hood +

The decision. Compile Lanczos3 image resampling to Rust + WebAssembly so documents can be processed locally.

The tradeoff. Large 48–108MP images can exhaust mobile memory. Web Workers and dynamic memory checks help reduce that risk, but device limits still matter.

02 — EXAMMINT ACADEMIC● Live

Grades, without the guesswork.

103 tools translating the grading ordinances of 15 Indian universities into useful answers.

TypeScriptGrading logicLocal storage

Explore Academic

03 — PROJECT12● Live

Paperwork, made approachable.

Bengali application templates, document checklists, and submission guides. Search, personalize a draft, and print it.

Bengali + English searchPrint-ready guides

Explore Project12

Tools for the work behind the work.

NOTIFICATION HISTORYAndroid / Offline

LastDrop

A local-only Android notification ledger built with Kotlin and Jetpack Compose. Keep a searchable history of captured notifications, star important alerts, and explore notification activity by app and hour. Records stay on your device, with no internet permission.

KotlinJetpack ComposeMIT

CAPTURE. SEARCH. KEEP IT LOCAL.

Searchable on-device history

Android's notification listener captures incoming alerts into a Room database with SQLite full-text search. Kotlin StateFlow connects stored records to the Compose interface.

Privacy filters and retention

A filter detects OTP and authentication-code alerts before storage. Periodic cleanup applies retention rules, while starred notifications are preserved.

View on GitHub

IMAGE OPTIMIZATIONAndroid / Offline

ReSinc

An offline Android image optimizer built with Flutter. Compress photos to target KB limits, crop and resize images, and strip EXIF metadata before export. Processing stays on your device, with saved presets and a local history for repeat tasks.

FlutterAndroidMIT

View on GitHub

DEVELOPER TOOLINGEarly development

dead-assets

A Rust command-line tool that finds unreferenced images, SVGs, fonts, and media in frontend projects. Built for Astro, Next.js, Vite, and similar codebases, it reports cleanup candidates and potential storage savings.

RustCLIMIT / Apache-2.0

View on GitHub

03 / ENGINEERING NOTES

The decisions behind the work.

01 / ARCHITECTURE

Put the computation where it belongs.

For ExamMint’s image tools, that means the browser. Local processing keeps files on the device and avoids a server-side image pipeline. The architecture follows the problem.

See the Resizer breakdown

02 / MAINTAINABILITY

Knowing what to stop building.

I retired ExamMint’s notification scrapers and portal monitors. Changing government websites and anti-bot behavior made maintenance impractical. Keeping a system alive isn’t always the best use of engineering time.

A lesson from retiring Noticeboard & Portal Watch.

04 / THE PERSON BEHIND THE CODE

Curiosity first.
Then the right tools.

Humayan Al Rosid@humayanx · Murshidabad, India

I left B.Sc. Mathematics to build things. What stayed with me is the need to understand why something works, not just follow the steps.

Today, I build ExamMint’s educational utilities and Project12’s Bengali paperwork guides. I care about useful software, clear logic, and choices I can maintain long after launch.

TOOLS I REACH FOR

TypeScript / Rust / Astro / SolidJS / WebAssembly / Cloudflare / IndexedDB / CSS

Chosen for the job. Not the other way around.

HAVE A USEFUL PROBLEM?

Let’s build the solution.

humayan@exammint.in

FOR INSTITUTES & BUSINESSES

Custom educational tools,
built around your requirements.

Explore working together

Useful software.Thoughtfully built.

Built to solve something.

Less file friction.More privacy.

Grades, without the guesswork.

Paperwork, made approachable.

More from the workbench

ExamMint OMR

ExamMint Verify

JEE Predictor

Age Calculator

Tools for the work behind the work.

LastDrop

ReSinc

dead-assets

The decisions behind the work.

Put the computation where it belongs.

Knowing what to stop building.

Curiosity first.Then the right tools.

Let’s build the solution.

Useful software.
Thoughtfully built.

Less file friction.
More privacy.

Curiosity first.
Then the right tools.