Developer Tools
Free, browser-based tools for software engineers and technical candidates. Every tool runs entirely client-side — your data never leaves your device.
Behavioral Speech & Filler Word Analyzer
Practice behavioral interview questions live. Get instant telemetry on speaking pace (WPM), filler words (um, like, basically), "I" vs "We" ownership ratio, and STAR timing.
Open toolInteractive Algorithm Step Visualizer
Watch algorithmic patterns execute frame-by-frame. Trace pointers, monitor variables, test custom inputs, and dry run in Python, JavaScript, Java, C++, or Go.
Open toolCode Translator — Python, Java, JS, C++
Convert code between Python, JavaScript, Java, and C++ instantly. Handles loops, recursion, data structures, sorting and graph algorithms. Built for LeetCode solutions.
Open toolCoding Interview Timer
Mock interview timer with phase tracking (read, plan, code, test, optimize), audio alerts, problem notes, and interviewer checklist. Presets for phone screen, onsite, and take-home.
Open toolLeetCode Difficulty Estimator
Paste any coding problem and instantly predict Easy, Medium, or Hard difficulty. Analyzes constraint sizes, algorithm patterns (DP, BFS, segment trees), and problem phrasing with confidence scoring.
Open toolSalary Negotiation Calculator
Get a data-driven counter-offer range, total compensation breakdown, 2026 market benchmarks for FAANG/Big Tech/Startups, and a ready-to-send negotiation email script.
Open toolJSON Formatter & Beautifier
Beautify, minify, validate, and convert JSON. Supports diff, tree view, TypeScript interfaces, CSV, YAML, JSON Schema, and JSONPath queries.
Open toolTime & Space Complexity Analyzer
Paste your code and instantly get Big-O time & space complexity analysis. Detects loops, recursion, hash maps, DP patterns. Supports Python, JavaScript, Java, C++.
Open toolInvisible Text Remover
Detect and remove hidden Unicode characters like zero-width spaces, em dashes, and smart quotes from AI-generated or copied text.
Open toolAI Resume Analyzer & Fixer
Upload your resume PDF or paste text to get an instant ATS score, actionable feedback, and AI-rewritten bullet points using the STAR method.
Open toolIs LeetCode Down? — Live Status
Check whether LeetCode is down right now. Pings the homepage and problem set directly from your browser for a real answer, not a cached report.
Open toolAI Slop Detector
Heuristic style checker that detects common patterns found in AI-generated text — em-dash density, corporate buzzwords, and uniform sentence length.
Open toolAI Text Cleaner
Remove em dashes, en dashes, smart quotes, zero-width spaces, and hidden Unicode characters from AI-generated text.
Open toolUnicode Inspector
Paste text to see every character's Unicode codepoint, name, and category. Detect hidden and invisible characters instantly.
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