Yasaboy Platform

Fast browser tools for PDFs, media, office work, and daily utilities.

Yasaboy brings local-first tools into one clean web app — no backend needed for supported tools.

119 tools local-first PWA ready

PDF & Document Tools

Merge, split, compress, convert, and export PDFs directly in your browser.

Runs on your device

Explore PDF tools

Image & Photo Tools

Resize, crop, compress, watermark, edit, and create collages without uploading files.

Runs on your device No server upload

Explore image tools

Audio & Video Tools

Extract audio, trim media, record screen/audio, and inspect video details locally.

Runs on your device Experimental

Explore audio & video tools

Mini Office Tools

Create and edit simple documents, spreadsheets, and presentations with local autosave.

Runs on your device Works offline after first load Experimental

Explore mini office tools

Developer & Text Utilities

Format JSON, encode Base64, generate QR/barcodes, convert timestamps, and count words.

Runs on your device

Explore developer tools

Security & Hash Tools

Generate SHA hashes, checksums, strong passwords, and test password strength locally.

Runs locally No server upload Web Crypto

Explore security tools

Nearby File Share Lite

Transfer files between two browsers with manual WebRTC pairing — no server upload and no automatic device discovery.

Experimental Manual pairing No server upload

Open Nearby Share

Privacy-first PWA

Install Yasaboy, use many tools offline after first load, and keep supported files on your device.

Works offline after first load Runs on your device

Open all tools

Open tools Explore platform

119: Browser tools
100%: Client-side utilities
PWA: Offline after first load

Services

One domain for every surface.

Production apps, APIs, experiments, writing, and small utilities are organized as a single web platform.

App

Application Hub

Installable PWA workspace — favorites and dashboard planned.

/app/ · PWA workspace planned API

Developer APIs

Roadmap docs only. Developer tools run locally in the browser today.

/api/ · Static docs — API not live Tools

Browser Tools Hub

119 local-first PDF, media, office, developer, and utility tools.

/tools/ · 119 tools ready Labs

Experiments

WebRTC share, QR scanner, scanners, and other experimental tools.

/labs/ · Experimental tools Blog

Notes and Updates

Static release notes and engineering posts — no CMS.

/blog/ · Release notes

Tools

Small utilities that stay in the browser.

Convert documents, extract WAV audio, generate QR codes, type Sinhala, and prepare safe direct video downloads from one browser tools hub.

Launch tools

Markdown to PDF Preview, export PDF, export Word PDF Merge Combine files in a chosen order PDF Optimize Rewrite and reduce structure overhead Website to PDF Load a public page and export the preview Video to Audio Extract WAV audio from local video files QR Code Generator Create styled QR codes with PNG and SVG downloads Singlish to Sinhala Typing Convert English-letter typing to Sinhala Unicode Direct Video Downloader Use direct public MP4, WebM, MOV, or OGG links

Work

Built around practical shipping.

Each surface has a clear role, from production apps to lightweight utilities.

Platform Front Door

A clear homepage that routes visitors to apps, APIs, tools, and experiments.

Browser Tooling

Client-side PDF, media, language, and utility tools designed for quick repeat use.

Developer Services

API-oriented work with a focus on clear contracts and durable delivery.

About

Yasas Pasindu Fernando

I build apps, APIs, and tools that solve concrete problems. Yasaboy is the hub for production work, experiments, writing, and utilities that are useful enough to keep online.

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