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Browse our complete collection of fast, private, browser-based online tools and utilities, including our flagship AI Projects challenge suite.
Free online calculators for everyday math, finance, and more. Percentage, age, EMI, average, and scientific calculations.
Calculate any percentage instantly.
Calculate exact age from date of birth.
Calculate loan EMI with formula.
Calculate the average of any numbers.
Full scientific calculator in your browser.
Calculate semester or cumulative CGPA and percentage.
Convert length, mass, temp, volume, speed, and storage units.
Calculate Body Mass Index and healthy weight range.
Calculate tip amounts and split bills between people.
Calculate sale prices, discounts, and sales tax.
Calculate investment growth over time.
Add or remove GST from any amount.
Calculate daily caloric needs.
Plan and forecast retirement savings.
Estimate body fat percentage.
Free online text tools for writing and editing. Word counter, character counter, case converter, and more.
Count words, characters, and sentences.
Count characters with and without spaces.
Convert text case instantly.
Remove duplicate lines from text.
Generate placeholder dummy text by words, sentences, or paragraphs.
Live split-pane Markdown editor and HTML renderer.
Compare two text blocks to inspect additions and deletions.
Generate cool fancy fonts and stylish gaming names.
Encode or decode URLs quickly.
Generate URL-friendly slugs from text.
Encode and decode HTML characters.
Repeat text multiple times instantly.
Estimate reading time for any text.
Convert numbers to English words.
Free online developer tools. JSON formatter, validator, Base64 encoder, UUID generator, and more.
Format and beautify JSON instantly.
Validate JSON and find errors instantly.
Encode and decode Base64 instantly.
Generate random UUIDs instantly.
Decode and inspect JWT headers, payload claims, and expiration.
Convert Unix epoch timestamps to UTC, local dates, and ISO 8601.
Convert HEX, RGB, HSL, and CMYK colors with WCAG contrast.
Test regular expressions with live match highlighting and flags.
Minify CSS code quickly.
Generate SHA-256, SHA-1 and DJB2 hashes.
Generate harmonious color palettes.
Beautify and format SQL queries.
Convert between YAML and JSON.
Client-side image compressor.
Client-side image format converter.
Client-side SVG to PNG converter.
Free online productivity tools. Password generator, QR code generator, and more to speed up your workflow.
Generate secure random passwords.
Generate QR codes for URLs and text.
Scan QR codes via camera or photo upload.
Test multi-touch, screen pixels, speakers, and specs.
Convert speech to text notes in real-time.
Listen to spoken words and test your typing speed.
Time management for focused work.
Generate professional invoices fast.
Find out how much meetings cost.
Track daily habits and streaks.
Cutting-edge AI applications from the 30 Days 30 AI Projects challenge. Healthcare triage, code analysis, predictive models, IoT, SRE incident response, and SaaS engines.
Clinical AI symptom triage and urgency stratification.
Multi-language static code analyzer & security auditor.
ATS match rate optimizer & resume generator.
Metabolic health predictor with SHAP explainability.
Executive summaries and action items from transcripts.
Real-time stock terminal & AI market sentiment.
Vector branding platform & SVG logo creator.
Personal finance coach & budget pacing forecaster.
GitHub portfolio auditor & developer impact score.
Cold email generator & subject line open-rate predictor.
Production prompt engineering terminal & optimizer.
Radiology diagnostic assistant with GradCAM heatmaps.
Technical coding interview coach & Big-O analyzer.
Retirement Monte Carlo simulation & asset allocation.
Spaced repetition flashcards with SM-2 algorithm.
On-page SEO auditor with Google E-E-A-T scoring.
Cloud topology designer & AWS/GCP cost calculator.
Kanban job application pipeline & salary analytics.
CBT cognitive reframing journal & emotional tracker.
Vector infinite canvas for system architecture diagrams.
Personalized TDEE macro meal planner & grocery list.
High-throughput API load tester with p99 latency meters.
Contract risk auditor & legal clause detector.
Unified IoT control platform & energy optimizer.
Trending GitHub repository radar & tech stack intelligence.
Viral social hook generator & LinkedIn carousel maker.
Drug interaction checker & medication adherence scheduler.
Natural language SQL builder & query plan explainer.
Three.js WebGL 3D point cloud & cluster visualizer.
DevOps incident response & SRE outage triage.
Multi-tenant AI SaaS starter kit with Stripe billing.