High-Performance Web Utilities & AI Engineering Suite
Zero signups, zero server logging, instant execution. Built for students, developers, and everyday professionals running entirely in your browser sandbox.
AI Engineering & Developer Labs
RAG chunk visualizers, vector embedding studios, WebAssembly code judges, token calculators, and JSON schema generators.
AI System Prompt Studio & Meta-Prompt Optimizer
Engineer, audit, and auto-architect developer-grade system prompts with AI. Supports Claude 3.7 XML, GPT-4o Markdown, DeepSeek CoT, token telemetry, security auditing, and SDK export.
LLM API Pricing & Token Cost Calculator
Estimate and compare API token costs across OpenAI GPT-4o, Claude 3.5 Sonnet, Gemini 2.5/3.1, and DeepSeek.
RAG Chunking & Retrieval Studio
Simulate document chunking strategies, visualize sliding overlaps, test vector semantic retrieval ranking, and estimate Vector DB memory and embedding costs.
Semantic Vector Embeddings & Similarity Studio
Generate 384-dimensional dense text embeddings and visualize semantic cosine similarity rankings 100% locally in browser with WebGPU.
Universal AI Text-to-Speech & Multi-Voice Podcast Studio
Convert books, Tamil novels, and creator scripts into multi-speaker podcasts, 2-voice dialogues, and lossless .WAV audio with 100% client-side privacy, BGM mixing, and zero limits.
CodeJudge Core (Online Judge & Sandbox)
Automated code assessment and online judge bench for students and competitive programmers with in-browser Pyodide WebAssembly and JavaScript engines.
JWT Debugger & Security Studio
Decode, verify signatures, audit security vulnerabilities, and craft JSON Web Tokens locally with Web Crypto API. Zero server transmission.
Cron Expression Studio & Visual Builder
Parse, visually compose, explain in plain English, and simulate upcoming execution timestamps for 5-part and 6-part cron schedules across multi-cloud ecosystems.
Text & Code Diff Studio
Compare text and source code side-by-side or unified with intra-line word/character highlights, change navigation, patch generation, and zero server uploads.
JSON to Multi-Language Schema Studio
Convert JSON payloads into strongly-typed models for Python Pydantic V2/V1, Dataclasses, TypedDict, TypeScript, Rust Serde, Go Structs, and SQL DDL.
Universal Base64, URL & Hex Converter Studio
Encode and decode Base64 strings, Image data URIs, URL query components, Hexadecimal memory dumps, Binary bits, and HTML entities with 100% in-browser privacy.
Universal UUID / ULID & Secure API Key Generator
Generate bulk RFC 4122 UUID v4, time-ordered UUID v7, sortable ULIDs, NanoIDs, and API bearer keys powered directly by browser Web Cryptography API.
CSV ↔ JSON & Table Data Studio
Convert bidirectionally between CSV, TSV, JSON, YAML, Markdown Tables, and SQL INSERT queries with auto-delimiter sniffing, dot-notation unflattening, and an interactive virtual data grid.
Meta Tag, Open Graph & Social Card Studio
Audit meta tags, Open Graph og:*, and Twitter cards with pixel-accurate live SERP, Twitter, LinkedIn, and Discord card simulators, character count budgets, and Next.js App Router code export.
HTTP Redirect & Status Chain Visualizer
Trace full HTTP redirect chains (301, 302, 307, 308 to 200 OK) with animated hop diagrams, protocol upgrade detection, per-hop latency telemetry, loop warnings, and SEO crawl budget audits.
HTTP Security Headers & SSL Scanner
Evaluate domain defensive posture from A+ to F across CSP, HSTS, X-Frame-Options, and Permissions-Policy with 1-click ready-to-copy code fixes for Next.js, Nginx, Apache, and Cloudflare Workers.
Universal DNS & MX Record Studio
Concurrent DNS resolution for A, AAAA, MX (priority-sorted), TXT (SPF/DKIM/DMARC linter), CNAME, NS, SOA, and CAA records with RFC 1035 master zone file export.
Reverse DNS & IP Geolocation Studio
Auto-detect client IP, perform reverse PTR lookup, inspect Autonomous System (ASN) routes, organization, geographic coordinates, and real-time round-trip latency telemetry.
Robots.txt & Sitemap Tree Visualizer
Validate and parse robots.txt rules with a live URL crawler path tester, expand recursive XML sitemaps in a virtual tree grid with lastmod freshness scoring, and export sitemap URLs to CSV.
Google Index & Canonical Inspector
Audit search engine crawlability and indexability: check noindex/nofollow directives, self-referencing canonical tag consistency, soft 404 indicators, and Googlebot search accessibility.
Tech Stack & Framework Fingerprinter
Detect web technologies, CMS engines (WordPress, Shopify, Webflow), Web Frameworks (Next.js, React, Vue, Nuxt, Astro), Cloud/CDN providers (Vercel, Cloudflare, AWS), and Analytics platforms from headers, scripts, and DOM signatures.
Keyword Density & Content NLP Analyzer
Calculate 1-gram, 2-gram, and 3-gram keyword density percentages, filter English stop words, evaluate 6 readability algorithms (Flesch-Kincaid, Gunning Fog, Coleman-Liau, SMOG), and analyze sentence burstiness in browser memory.
Unified Technical, AEO & GEO Audit Studio
Single-click 5-phase SEO, AEO and Generative Engine Optimization audit: inspect dynamic CSR hydration diffs, Core Web Vitals, Schema.org AST graphs, and AI search citation readiness with 1-click code fixes.
Universal Web Crawler & Recursive Site Spider Studio (WebSonar Pro)
Autonomous recursive website crawler, link spider, and structured page dataset compiler (WebSonar, CrawlForge, SiteCartographer). Spiders full domains, extracts H1/H2s, words, and latency, and exports to JSON, CSV, and XML Sitemap.
SchemaMatrix Pro — Research-Grade Web Semantic Extractor & API Studio
Research-grade zero-rule web semantic extractor, ontology classifier, and multi-language data contract synthesis engine. Converts URLs into type-safe JSON, TypeScript interfaces, and Pydantic v2 models with confidence and provenance scores.
Everyday Productivity, HR & Financial Calculators
Statutory Indian payroll and tax estimators, private client-side PDF suites, and smart text analyzers.
India Salary Breakup & In-Hand Pay Calculator
Calculate exact monthly take-home salary from annual CTC under New and Old Tax Regimes with EPF, Gratuity, and Professional Tax breakdowns.
Statutory Gratuity Calculator India
Calculate statutory gratuity entitlement under the Payment of Gratuity Act 1972 with continuous service rules and tax exemption ceilings.
House Rent Allowance (HRA) Exemption Calculator
Calculate House Rent Allowance tax exemption under Section 10(13A) and Rule 2A of the Income Tax Act with Metro and Non-Metro rules.
India GST & Reverse Tax Calculator
Calculate forward GST, reverse tax extraction, CGST/SGST/IGST splits, and multi-item invoices across 0%, 5%, 12%, 18%, and 28% slabs.
Step-Up SIP & Milestone Wealth Planner
Calculate compound wealth growth with annual step-ups, inflation-adjusted purchasing power, and Crorepati milestone roadmaps.
Loan EMI & Prepayment Amortization Calculator
Calculate exact monthly loan EMIs, interest breakdowns, and simulate interest savings from monthly or annual prepayments with downloadable amortization schedules.
Offer Letter & AI Salary Copilot
Paste offer letters, payslip texts, or compensation packages to parse remuneration structures and get AI tax-saving strategies.
STAR Method ATS Resume Bullet Polisher
Transform raw college projects and tasks into high-impact, ATS-optimized STAR resume bullet points (3 to 6 points) with domain metrics and action verbs.
60-Sec "Tell Me About Yourself" (TMAY) Pitch Generator
Generate personalized 60-90s 'Tell Me About Yourself' (TMAY) campus interview elevator pitches for TCS, Infosys, Wipro, Google, and Startups with spoken teleprompter.
AI Cover Letter & Recruiter Outreach Generator
Generate customized, human-sounding cover letters, LinkedIn recruiter InMails, and cold hiring manager pitches tailored to any global company with 1-click export.
GPA Studio & Final Exam Target Forecaster
Calculate weighted and unweighted semester GPA across US 4.0, Weighted 5.0 AP/IB, and India 10.0 CGPA scales, reverse-solve required final exam scores, and forecast graduation honors.
Universal Invoice & Receipt Studio
Generate professional vector PDF invoices, retail receipts, and UBL 2.1 electronic invoice data with 100% client-side privacy, multi-currency math, and instant payment QR codes.
Professional Resignation Letter & Notice Generator
Generate formal resignation letters, notice period emails, and buyout requests with instant LWD calculations and 1-click PDF/copy.
Private Client-Side PDF to JPG / PNG Converter
Convert PDF pages to high-resolution PNG or JPG images 100% locally in your browser with zero server uploads and high-DPI quality.
Universal PDF & Image Merger Studio
Merge multiple PDF documents, rearrange pages, insert ID photos, and combine JPG/PNG images into a single PDF 100% privately in browser.
Private Client-Side PDF Compressor & Size Reducer
Compress PDF file size to under 100 KB, 200 KB, or 500 KB 100% locally in your browser memory for UPSC, SSC, university, and visa portals.
International Passport, Visa & Govt Exam Photo Studio
Create compliant biometric passport photos for US Visa (2x2 in), Indian Passport/OCI (35x45mm), UPSC/SSC Name & Date stamps, and 4x6 printable grids.
Private PDF Watermark & Password Security Studio
Prevent identity theft on Aadhaar, Driver's License, passports, and bank statements. Add custom diagonal watermarks and password protection 100% client-side.
Smart Image Compressor, Resizer & WebP Converter
Compress JPG, PNG, and WebP images to exact target sizes (<20KB, <50KB, <100KB for UPSC/SSC portals) with 100% private in-browser compression.
Universal QR Code Studio (WiFi, UPI, vCard & Logo)
Create custom QR codes for Website URLs, Instant WiFi login, UPI payments, and contact vCards with custom brand logos and high-res vector SVG exports.
ColorHexer Pro — Research-Grade Color Extractor & Token Studio
Extract perceptually uniform Oklab/OKLCH color palettes, interactive draggable focal markers, Adobe mood harmonies, 9-step accessible shade ladders, and Tailwind CSS 4/DTCG design tokens from any image.
Private PDF Page Splitter & Custom Extractor Studio
Extract custom page ranges (e.g. 1-3, 5), split documents by intervals, or burst every page into standalone PDFs 100% locally in your browser memory.
Visual PDF Page Organizer, Rotator & Page Deletion Studio
Visually rearrange page order with drag & drop, rotate sideways or upside-down scans (90°/180°), delete blank pages, duplicate pages, and append extra PDFs 100% privately.
Universal PDF Overlay & Digital Letterhead Superimposer Studio
Superimpose company letterheads, background stationeries, invoices, and digital borders onto PDF documents 100% locally in your browser memory.
Professional PDF Page Numbering & Header/Footer Studio
Stamp custom page numbers ('Page X of Y', Bates numbers), headers, and footers onto multi-page PDF documents with cover page exclusion 100% client-side.
Private PDF Signature & Electronic Stamp Studio
Sign PDF contracts, NDAs, offer letters, and rental agreements with your digital pen, cursive handwriting font, or uploaded corporate stamp 100% privately in browser.
Permanent PDF Redact & Confidential Blackout Studio
Permanently blackout or whiteout Aadhaar, SSN, PAN, salary numbers, bank accounts, and confidential names with irreversible security rasterization.
Private Client-Side Sensitive Document OCR & Data Extractor
Extract text, structured JSON bounding boxes, and CSV tables from confidential PDFs, bank statements, receipts, and images 100% in-browser with zero server uploads.
Smart Word Counter & Reading Time Analyzer
Calculate real-time word count, character count, silent reading time, speaking duration, Flesch readability, and keyword density.
AI Humanizer & Writing Integrity Studio
Statistical AI pattern detector, sentence burstiness analyzer, and writing slop cleaner. De-bias robotic text and achieve natural human cadence.
Privacy-First Universal Content & Code Similarity Studio
100% in-browser plagiarism and similarity checker for documents and source code. Features Winnowing fingerprinting, neural vector paraphrase detection, and AST code clone analysis with zero server uploads.
Multi-Standard Citation & Bibliography Studio
Generate 100% compliant academic citations and bibliographies across APA 7, MLA 9, Chicago 17, Harvard, IEEE, and BibTeX styles with rich-text clipboard formatting and in-text citation tags.
100% In-Browser Memory Execution
Your resumes, payslips, code submissions, JWTs, and PDF files are processed locally inside your browser via WebAssembly (Pyodide, PDF.js, V8). Zero bytes are transmitted to any backend server.