Irreva logo
Explore Irreva
AboutPrivacyTermsContact

About Irreva

Irreva is a collection of 301+ free, fast, and private online tools. Our mission is simple: give everyone access to powerful utilities without requiring software installation, account creation, or payment.

Founder

Hasanur Rahman — Founder & Full-Stack Developer

Hasanur Rahman

Founder & Full-Stack Developer

Bangladesh

Hasanur Rahman is the founder and sole developer behind Irreva. With hands-on expertise in React, Next.js, TypeScript, Node.js, WebAssembly, and Web Workers, he designs, builds, and maintains every tool on the platform — from the browser-based image compressor to the AI-powered background remover. Every tool is personally engineered, tested, and iterated on before release.

Irreva has grown from a personal developer toolbox into a public platform used by developers, designers, and everyday users worldwide. All 301+ tools run entirely in the browser — no uploads, no accounts, no server round-trips.

Twitter / XLinkedInhello@irreva.app

Mission

We believe that essential digital tools should be accessible to everyone — regardless of technical skill, budget, or device. Too many tools require sign-ups, charge for basic features, or upload your sensitive files to remote servers.

Irreva takes a different approach. Every single tool on this platform runs entirely inside your web browser. When you compress an image, merge a PDF, or decode a JWT token, that processing happens on your device — not on our servers. We never see your files.

This has two major benefits: your data stays completely private, and results are instant because there is no network round-trip to a server.

Expertise & Technology

Irreva is built on a modern, entirely client-side technology stack. Every processing operation — from AI background removal to PDF manipulation — runs in your browser using well-audited open-source libraries. No files are uploaded to any server.

Next.js

React framework for fast, SEO-friendly pages

TypeScript

Type-safe code for reliability

Tailwind CSS

Responsive, accessible UI

PDF.js

PDF rendering and text extraction

pdf-lib

PDF creation, merging, splitting, and editing

Tesseract.js

OCR — text extraction from images and PDFs

ISNet (ONNX)

AI background removal via WebAssembly

dcraw (WASM)

Camera RAW file decoding

JsBarcode

Barcode generation

ZXing

QR code and barcode scanning

heic2any

HEIC/HEIF to JPG conversion

Web Crypto API

Cryptographic hashing and UUID generation

Skills & Specialisms

ReactNext.jsTypeScriptNode.jsWebAssemblyWeb WorkersCanvas APIWeb Crypto APIREST APIsSEOBrowser-based image processingPDF manipulationOCR integrationPrivacy-first architecture

Experience

Founder & Full-Stack Developer — Irreva

2024 – Present · Rangpur, Bangladesh

Designed and built Irreva from the ground up. Responsible for all product decisions, frontend and backend architecture, tooling, SEO, performance optimisation, and ongoing maintenance. Grew the platform to 301+ tools across eight categories. Stack: Next.js, TypeScript, Tailwind CSS, WebAssembly, Web Workers, Canvas API, pdf-lib, Tesseract.js, and ONNX Runtime Web.

Full-Stack Web Development

Prior experience · Bangladesh

Background in full-stack web development with hands-on experience across the JavaScript ecosystem — React, Next.js, TypeScript, Node.js, REST APIs, and browser-platform APIs including WebAssembly, Web Workers, the Canvas API, and the Web Crypto API. Applied this expertise to build every processing engine inside Irreva without any server-side dependencies.

Open-Source & Browser Technology

Ongoing · Bangladesh

Deep experience integrating open-source processing libraries into production browser environments: PDF.js, pdf-lib, Tesseract.js, ISNet (ONNX), dcraw (WebAssembly), JsBarcode, ZXing, heic2any, and the Web Crypto API. All processing runs client-side — users' files never leave their device.

Why Irreva Exists

The internet is full of useful tools that have been locked behind subscriptions, cluttered with dark patterns, or quietly upload your sensitive documents to servers you've never heard of. Hasanur Rahman built Irreva to solve this problem for himself first — and then opened it to everyone.

The central principle is simple: your files belong to you. They should never need to leave your device for a compression job, a format conversion, or a PDF merge. Browser APIs and WebAssembly have made this fully achievable without sacrificing performance.

Everything on Irreva is free, and that's not a marketing claim — there are no freemium tiers, no credit systems, no conversion limits. The platform is supported by advertising, not by restricting access to tools.

Privacy & User Trust

No file data collected: We do not collect, store, or transmit any files you process with our tools. All processing is local to your browser.

No individual tracking: We do not use individual user tracking cookies or behavioural profiling. Analytics (Google Analytics 4) are collected only with your explicit consent, in anonymised aggregate form.

Google Consent Mode v2: All consent signals default to denied. No data flows to advertising or analytics platforms until you opt in via our cookie consent banner.

Hosting: Irreva is hosted on Vercel. Standard server access logs (IP addresses, request timestamps) may be collected by Vercel as part of their infrastructure. See Vercel's Privacy Policy for details.

Operator identity: Irreva is operated by Hasanur Rahman, a full-stack developer based in Rangpur, Bangladesh. Contact: hello@irreva.app. For data protection enquiries: privacy@irreva.app.

Advertising: Irreva may display ads to support free access. Ads are served by third-party networks subject to their own privacy policies and only with your consent.

Privacy Policy →Cookie Policy →Terms of Service →Disclaimer →

Our Values

Privacy First

Every tool processes your files locally in your browser. Your data never touches our servers. We have zero access to your files, documents, or images.

Instant Results

No server round-trips means no waiting. Processing happens at the speed of your device — typically milliseconds for most operations.

Free Forever

Irreva is and will always be free. No freemium tiers, no credit limits, no paywalls. Every tool is fully accessible to everyone.

No Account Required

We don't ask for your email, name, or any personal information. Open a tool and start using it immediately.

Built for Everyone

Whether you're a developer, designer, student, or casual user — our tools are designed to be intuitive and accessible on any device.

Open Technologies

We use well-established open-source libraries: PDF.js, Tesseract.js, pdf-lib, JsBarcode, ZXing, and more — all running client-side.

Our Tools

301+ tools across eight categories — all free and browser-based:

Image Tools

PDF Tools

Developer Tools

Calculators

View all 301+ tools →

Get in Touch

Have a suggestion for a new tool? Found a bug? Want to report an issue? We would love to hear from you.

Contact Ushello@irreva.app