I build things people use.

1{2  "role": "Senior Web Developer",3  "based_in": "Kolkata, India",4  "age": 36,5  "day_job": "Senior Associate @ Cognizant",6  "studied": "B.Tech, Computer Science @ Academy Of Technology",7  "building_since": 2011,8  "stack": ["Next.js", "TypeScript", "React", "Tailwind"],9  "shipped": {10    "products_live": 7,11    "happy_users": "16,000+",12    "platforms": ["web", "chrome", "firefox", "edge"]13  },14  "founded": ["CentPage", "SummaryTube", "SessionManager", 15    "WebDeveloperTools", "EditPage", "WebArchiveViewer"],16  "loves_shipping": true, // evenings & weekends17  "blog": "ritwick.com/blog",18  "github": "@ritwickhalder",19  "currently": "shipping the next one"You, just now · uncommitted20}

1import type { Project } from "./types";23export const summarytube: Project = {4  name: "SummaryTube",5  url: "summarytube.com",6  pitch: "AI summaries, key moments and transcripts for any YouTube video, in seconds.",7  since: 2025,8  users: "6,000+",9  platforms: ["web", "chrome", "firefox"],10  stack: ["Next.js", "TypeScript", "Tailwind CSS", "LLMs", "Supabase", "Vercel"],11  status: "live",12};1314// 1 of 7 · pick another project above

1import type { Project } from "./types";23export const centpage: Project = {4  name: "CentPage",5  url: "centpage.com",6  pitch: "An all-in-one internet homepage and new-tab productivity dashboard, running since 2012.",7  since: 2012,8  users: "7,000+",9  platforms: ["web", "chrome", "firefox"],10  stack: ["PHP", "MySQL", "JavaScript", "HTML", "CSS"],11  status: "live",12};1314// 2 of 7 · pick another project above

1import type { Project } from "./types";23export const superSessionManager: Project = {4  name: "Super Session Manager",5  url: "sessionmanager.net",6  pitch: "Save, organize and restore browser tabs, tab groups and bookmarks in one click.",7  since: 2025,8  users: "3,000+",9  platforms: ["web", "chrome", "firefox", "edge"],10  stack: ["Browser extension", "JavaScript", "HTML", "CSS"],11  status: "live",12};1314// 3 of 7 · pick another project above

1import type { Project } from "./types";23export const webDeveloperTools: Project = {4  name: "Web Developer Tools",5  url: "webdevelopertools.dev",6  pitch: "500+ tools to inspect, outline, edit and audit any page, from one keyboard-friendly popup.",7  since: 2025,8  platforms: ["web", "chrome", "firefox", "edge"],9  stack: ["Browser extension", "JavaScript", "HTML", "CSS"],10  status: "live",11};1213// 4 of 7 · pick another project above

1import type { Project } from "./types";23export const editPage: Project = {4  name: "Edit Page",5  url: "editpage.dev",6  pitch: "Edit any webpage visually: text, CSS and HTML, with changes kept per site.",7  since: 2019,8  platforms: ["web", "chrome"],9  stack: ["Browser extension", "JavaScript", "HTML", "CSS"],10  status: "live",11};1213// 5 of 7 · pick another project above

1import type { Project } from "./types";23export const webInternetArchive: Project = {4  name: "Web Internet Archive",5  url: "webinternetarchive.com",6  pitch: "Look up any page across the Wayback Machine, Archive.today and six more web archives.",7  since: 2020,8  platforms: ["web", "chrome"],9  stack: ["Browser extension", "JavaScript", "HTML", "CSS"],10  status: "live",11};1213// 6 of 7 · pick another project above

1import type { Project } from "./types";23export const web3lens: Project = {4  name: "Web3Lens",5  url: "web3lens.com",6  pitch: "A search engine and explorer for blockchains, crypto addresses and transactions.",7  since: 2018,8  platforms: ["web"],9  stack: ["React", "PHP", "MySQL", "Blockchain APIs"],10  status: "live",11};1213// 7 of 7 · pick another project above

1# Ritwick Halder2Senior Web Developer · Kolkata, India34## What I build5- AI tools, browser extensions and web apps6- 7 live products, used by 16,000+ people7- Shipping since 2011, starting with CentPage89## Stack10- Next.js · TypeScript · React · Tailwind1112## Say hi13- ritwick.com/blog · @ritwickhalder