SSourav Saha
HomeExperienceSoftware DesignSystem DesignLearningBooksToolsContact
SSourav Saha

Building scalable backend systems, distributed infrastructure, and cloud-native applications.

Navigation

  • Home
  • Experience
  • Software Design
  • System Design
  • Learning

More

  • Books
  • Tools
  • Contact

Connect

  • LinkedIn
  • Email

© 2026 Sourav Saha. All rights reserved.

Built with using Next.js

Developer Tools

A collection of tools and utilities I've built to help with everyday programming tasks. These are designed to be fast, reliable, and privacy-focused.

Coming Soon
Network

API Tester

Test REST APIs, inspect requests and responses

Open Tool
Cryptography

Base64 Encoder / Decoder

Encode and decode Base64 strings

Open Tool
Productivity

Checklist

Deployment and code review checklists

Open Tool
Algorithms

Complexity Calculator

Estimate algorithm complexity

Open Tool
Data

Diff Checker

Compare JSON, configuration files and text

Open Tool
Coming Soon
Design

Draw (Infinite Canvas)

Whiteboard and architecture diagrams

Open Tool
Cryptography

Hash Generator

Generate SHA256, SHA1 and MD5 hashes

Open Tool
Network

HTTP Status Lookup

Browse HTTP status codes

Open Tool
Data

JSON Formatter

Format, validate and beautify JSON

Open Tool
Security

JWT Decoder

Decode and inspect JWT tokens

Open Tool
Coming Soon
Productivity

Markdown Notes

Technical notes, documentation and personal wiki

Open Tool
Data

Markdown Preview

Live Markdown rendering

Open Tool
Productivity

Planner

Weekly and daily planning

Open Tool
Productivity

Timer & Pomodoro

Focus timer, stopwatch, and countdown

Open Tool
AI

Prompt Pad

Save and organize AI prompts

Open Tool
Development

Regex Tester

Build and test regular expressions

Open Tool
Coming Soon
Data

SQL Playground

Execute SQL in an in-browser database

Open Tool
Architecture

System Design Playbook

Interactive quick-reference, estimation calculator, and interview prep for system design

Open Tool
Productivity

Text Notes

A minimal, distraction-free text pad that automatically saves to local storage.

Open Tool
Utilities

Timestamp Converter

Convert Unix timestamps and timezones

Open Tool
Productivity

Todo App

Task tracking and productivity

Open Tool
AI

Token Counter

Count LLM tokens

Open Tool
Utilities

URL Encoder / Decoder

Encode and decode URLs

Open Tool
Utilities

UUID Generator

Generate UUIDs

Open Tool