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90 toolsFree browser-based utility tools. Timers, generators, and more. Every tool runs 100% in your browser.
Academic Citation & Bibliography Studio — APA 7th, MLA 9th, Chicago & BibTeX
Free, private, serverless in-browser academic citation generator and bibliography studio for APA 7th, MLA 9th, Chicago, Harvard, IEEE, and BibTeX with automated DOI/ISBN lookup.
Audio Merger & Joiner — Combine Music, Podcasts & Sound Clips
Free audio merger and joiner online. Combine multiple MP3, WAV, M4A, OGG, and AAC tracks into one seamless file with custom gaps — 100% in-browser.
Audio Recorder — High-Quality Voice & Microphone Studio
Free online audio recorder. Capture microphone audio with real-time spectrum visualizer, pause/resume, uncompressed Opus/WAV download — 100% in-browser.
Avatar Generator — Free Online Unique Profile Picture & Icon Maker
Generate unique, deterministic avatars and profile pictures online. Free, private, client-side avatar maker with geometric, pixel art, initials, and gradient styles in high-res PNG.
Barcode Generator — Code 128, Code 39, UPC & Bulk Label Creator
Free online barcode generator. Create Code 128, Code 39, EAN-13, and UPC barcodes with custom dimensions, bulk batch generation, and PNG export — 100% in-browser.
Business Card Maker — Free Online Card Designer with Templates
Design and download professional business cards online. Free, private, client-side business card maker with 8 templates, logo/photo upload, and print-ready PDF/PNG export.
CSS Glassmorphism Generator — Frosted Glass UI Effect & Code
Free CSS glassmorphism generator online. Create frosted glass UI cards with live preview, backdrop-filter blur, opacity, border shine, and instant CSS export.
Capacitor Charge Calculator — RC Time Constant, Energy & Decay
Free capacitor charge calculator online. Calculate RC time constant (τ), charging and discharging times, stored electrical energy, charge (Q), and peak current.
Certificate Generator — Free Professional Award & Diploma Maker
Free online certificate generator. Create custom certificates of completion, achievement, appreciation, and diplomas with real-time canvas preview and PNG download.
Clothing Size Converter — US, UK, EU & International Sizes
Free, private, client-side clothing size converter. Convert US, UK, EU, and International apparel sizes for men and women across tops, shirts, pants, and dresses.
Color Contrast Checker — WCAG 2.1 & APCA Accessibility Tester
Free, private, client-side WCAG 2.1 color contrast checker. Test foreground and background color combinations for AA and AAA accessibility compliance with real-time text previews.
Concrete Calculator — Volume & Bags Needed for Slabs, Footings & Columns
Free concrete calculator for rectangular slabs, footings, and cylindrical columns. Calculate volume in cubic yards, cubic meters, and exact bags needed — 100% client-side, 100% serverless.
Contract Risk Scanner & NDA Trap Detector — Freelance & Client Agreement Audit Studio
Free, private, serverless contract risk scanner and NDA trap detector. Audit freelance agreements, non-competes, IP assignment, and liability traps locally.
Cookie Policy Generator — Free GDPR, ePrivacy & CCPA Compliant Template
Free, private, client-side cookie policy generator. Create legally aligned cookie policies for your website compliant with GDPR, ePrivacy Directive, and CCPA/CPRA.
Data Transfer Cost Calculator — Multi-Cloud Egress Pricing Estimator
Free, private, client-side data transfer cost calculator. Estimate and compare cloud egress pricing across AWS, Google Cloud, Microsoft Azure, Cloudflare R2, and DigitalOcean.
Decision Matrix Tool — Weighted Scoring Pugh Matrix & Multi-Criteria Analysis
Free, private, serverless decision matrix tool. Evaluate options with weighted scoring, Pugh matrix analysis, weight normalization, and CSV export — 100% in-browser.
Dice Roller — Cryptographic Polyhedral Dice for D&D & Tabletop RPGs
Free, private, client-side polyhedral dice roller. Roll D4, D6, D8, D10, D12, D20, D100 with cryptographic randomness, animated 3D rolls, modifiers, and session history.
Disclaimer Generator — Free Legal Disclaimers for Websites & Blogs
Free, private, client-side legal disclaimer generator. Create tailored disclaimers for general liability, professional advice, affiliate commissions, and medical content.
E-Commerce Multi-Platform Profit Matrix & Fee Calculator — Amazon FBA, eBay, Etsy, Shopify & TikTok Shop
Free, private, serverless multi-platform e-commerce profit matrix and marketplace fee calculator. Compare net margins, fees, ROI, and break-even price across Amazon FBA, eBay, Etsy, Shopify, and TikTok Shop.
EULA Generator — Free End User License Agreement for Software & Apps
Free, private, client-side EULA generator. Create legally enforceable End User License Agreements for desktop software, mobile apps, and SaaS platforms.
FIRE Simulator & Early Retirement Calculator — Lean, Fat, Coast & Barista FIRE Studio
Free, private, serverless FIRE calculator and early retirement simulator. Calculate your FIRE number, Lean, Fat, Coast, Barista FIRE, and Safe Withdrawal Rate (4%).
Flooring Calculator — Square Footage, Material Waste & Box Estimator
Free, private, client-side flooring calculator. Estimate room area, material square footage, waste contingency, box quantities, and total costs for hardwood, laminate, tile, and vinyl.
Freelance Hourly Rate & Pricing Matrix Calculator — Billable Target & Project Fee Studio
Free, private, serverless freelance hourly rate and project pricing matrix calculator. Calculate minimum billable rates, day rates, value-based pricing, and overhead.
Gantt Chart Maker — Interactive Project Timeline & Milestone Scheduler
Free, private, serverless Gantt chart maker. Build interactive project timelines, track task progress, customize colors, and export PNG or CSV — 100% in-browser.
Glitch Art Generator — Free Online Image Glitch Effect Tool
Transform any photo into stunning digital glitch art directly in your browser. Features 10 real-time canvas effects, 6 curated retro presets, pixel sorting, RGB split, and instant PNG export with zero uploads.
Grade Calculator — Weighted Average, GPA & Final Exam Grade
Free, private, client-side grade calculator. Calculate weighted assignment averages, 4.0 GPA letter grades, and the exact final exam score required to pass.
Gravel & Mulch Calculator — Volume, Weight & Cost Estimator
Free, private, client-side gravel and mulch calculator. Estimate material volume in cubic yards, weight in tons, bag count, truck loads, and cost for any landscaping area.
Hashtag Generator — Social Media Tag Creator & Trend Optimizer
Free, private, client-side hashtag generator. Create relevant, high-engagement hashtags for Instagram, TikTok, LinkedIn, Twitter/X, and YouTube.
IBAN Validator & Formatter — Bulk IBAN Verification
Free IBAN validator and formatter with bulk verification support. Validate IBANs, extract bank codes, branch details, and BBAN for 80+ countries with MOD-97 checksum and CSV export. Serverless, 100% private in-browser.
IP Address Converter — IPv4 Binary, Hex, Integer & CIDR Subnet Calculator
Free, private, client-side IP address converter. Convert IPv4 to binary, hexadecimal, octal, and integer; calculate CIDR subnets, masks, and usable host ranges.
Image Collage Maker — Photo Grid Creator & Montage Designer
Free, private, client-side photo collage maker. Combine 2 to 12 images into customizable grid layouts with borders, corner rounding, and high-res export.
Image Flip, Mirror & Rotate — Lossless Orientation & Angle Transformer
Free, private, client-side image flip, mirror, and rotate tool. Flip horizontally and vertically, rotate by 90°, 180°, 270°, or arbitrary angles, export PNG/JPG/WebP.
Invoice Generator — Free PDF Billing & Bulk Invoice Creator
Free, private, client-side invoice generator. Create professional PDF invoices instantly with custom branding, itemized taxes, discounts, and bulk CSV import.
Kanban Board — Agile Visual Task & Sprint Workflow Manager
Free, private, serverless Kanban board with drag-and-drop task management. Multi-board support, WIP columns, task priority badges, real-time filtering, and JSON backup — 100% in-browser.
Keyboard Tester — Mechanical & Membrane Key Latency & Ghosting Diagnostic
Free, private, client-side keyboard tester. Test every key on your keyboard, detect switch ghosting, measure input latency, and inspect JavaScript keyCodes.
LED Resistor Calculator — Single, Series & Parallel Circuit Designer
Free, private, client-side LED resistor calculator. Compute exact resistance, nearest E12/E24 standard resistors, wattage dissipation, and color codes.
MAC Address Generator — Random, Vendor OUI & Multicast Hardware Address Generator
Free, private, client-side MAC address generator. Create random, locally administered, or vendor-specific MAC addresses in multiple formats with OUI lookup.
Meeting Cost Calculator — Real-Time Meeting Expense & Salary Burn Tracker
Free, private, serverless meeting cost calculator. Track the real-time financial cost of business meetings based on attendee count, average salaries, and duration. Calculate recurring meeting expenses with live ticker, salary presets, and CSV export — 100% client-side in your browser.
Meme Generator — Free Online Custom Meme Maker with No Watermark
Create hilarious, viral custom memes instantly in your browser with zero watermarks. Features classic Impact font, stroke outlines, drop shadows, unlimited text layers, popular templates, and lossless PNG download.
Microphone Test — Free Online Mic Tester & Frequency Spectrum Visualizer
Free, private, serverless microphone tester. Test mic input quality with real-time frequency visualizer, decibel peak meter, and latency detection. Diagnose headsets, USB mics, and built-in microphones 100% client-side in your browser.
Mind Map Maker — Visual Brainstorming & Idea Organizer
Free, private, serverless mind map maker. Create visual mind maps with radial and tree layouts, customizable node colors, collapse/expand branches, and export to PNG, SVG, or JSON — 100% in-browser.
Motivational Quote Generator — Daily Inspiration & Social Media Quote Cards
Free, private, serverless motivational quote generator. Generate inspirational quotes across success, wisdom, leadership, and courage with styled typography cards, one-click clipboard copying, and PNG image export — 100% client-side in your browser.
Mouse Tester — Online Mouse Buttons, Scroll Wheel & Sensor Diagnostics
Free, private, serverless mouse tester. Test left, right, and middle mouse buttons, scroll wheel precision, double-click chattering, and cursor coordinates with real-time visual feedback — 100% client-side in your browser.
Moving Cost Estimator — Calculate Local & Long-Distance Relocation Expenses
Free, private, serverless moving cost estimator. Calculate residential moving expenses based on home size, mileage, labor rates, and professional packing services. Get accurate low-to-high budget ranges 100% client-side in your browser.
NDA Generator — Free Non-Disclosure & Confidentiality Agreement Builder
Free, private, serverless NDA generator. Create legally structured mutual or one-way non-disclosure agreements with custom disclosure terms, trade secret protections, and jurisdictional clauses — 100% client-side in your browser.
PCB Trace Width Calculator — IPC-2221 Current Capacity & Resistance
Free, private, serverless PCB trace width calculator. Calculate minimum trace width per IPC-2221, electrical resistance, voltage drop, and power dissipation — 100% client-side in your browser.
PDF Blank Page Auto-Detector & Purger — Smart Scanned Document Cleaner
Free, private, serverless in-browser PDF blank page auto-detector & purger. Scan pixel luminosity, ink density, remove blank pages from scanned PDFs, and export clean files.
PDF Booklet Maker & 2-Up Imposition Studio — Foldable Book Printer
Free, private, serverless in-browser PDF booklet maker and imposition arranger. Convert documents into 2-Up saddle-stitch printable signatures with centerfold preview and duplex guidelines.
PDF Compressor — Reduce PDF File Size Online Free
Free, private, serverless PDF compressor. Compress PDF documents directly in your browser using lossless object stream restructuring, metadata stripping, and cross-reference optimization — 100% client-side with zero file uploads.
PDF Editor — View, Annotate, Sign & Edit PDFs In-Browser
Free, private, serverless PDF editor. Open, read, annotate, draw, highlight, sign contracts, apply stamps, and save edited PDFs directly in your browser — 100% client-side, zero uploads.
PDF Password Protect & Unlock — Encrypt or Remove Passwords Online Free
Free, private, serverless PDF password tool. Encrypt PDF documents with military-grade AES password protection or unlock password-secured files — 100% client-side in your browser with zero file uploads.
PDF to Text — Extract Clean Text from PDF Online Free
Free, private, serverless PDF to text extractor. Convert PDF documents to clean, editable plain text with page-by-page separation and character statistics — 100% client-side in your browser with zero file uploads.
Paper Size Reference — ISO 216 (A/B/C), US Letter & Print DPI Dimensions
Free, private, serverless paper size reference guide and dimension calculator. Lookup ISO 216 A/B/C series, North American Letter/Legal, and convert millimeters to pixels across 72, 150, 300 DPI — 100% client-side in your browser.
Pomodoro Timer — Free Online Focus Timer & Productivity Tracker
Free, private, serverless Pomodoro timer with animated progress ring. Boost productivity with customizable 25/5 focus intervals, audio chime alerts, tab countdowns, and session tracking — 100% client-side in your browser.
Power Factor Calculator — Real, Reactive & Apparent Power Analysis
Free, private, serverless power factor calculator. Calculate real power (kW), reactive power (kVAR), apparent power (kVA), phase angle, and capacitor sizing for power factor correction — 100% client-side.
QR Code Generator — Free, Custom & Privacy-Focused 2D Barcodes
Free, private, serverless QR code generator. Create high-resolution custom QR codes for URLs, Wi-Fi, vCards, text, and emails. 100% in-browser generation with instant PNG download.
Random Color Generator — Instant Palettes, HEX, RGB & HSL Codes
Generate vibrant, cryptographically random color palettes instantly in your browser. Features 1-10 color swatches, individual color locking, HEX/RGB/HSL conversion, spacebar shortcuts, and zero server tracking.
Random Number Generator — Cryptographic & Uniform Sampling
Free, private, serverless random number generator. Generate true uniform and cryptographically strong random integers, decimals, and sequences with custom bounds — 100% client-side.
Readability Score Analyzer — Flesch-Kincaid, SMOG & Fog Metrics Online
Free, private readability score analyzer. Calculate Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and ARI scores instantly with CSV export 100% client-side.
Receipt Generator — Free Custom Sales & Payment Receipts Maker
Free, private, serverless receipt generator. Create professional custom sales receipts with itemized rows, tax calculations, discounts, and payment methods — 100% in-browser.
Recipe Scaler — Adjust Servings, Quantities & Culinary Fractions
Free, private, serverless recipe scaler. Multiply or divide ingredient quantities by servings with smart fraction conversions and culinary volume/weight units — 100% in-browser.
Rental Yield & Cap Rate Calculator — Real Estate Investment ROI & Cash Flow Studio
Free, private, serverless real estate rental yield and cap rate calculator. Calculate gross & net rental yields, capitalization rate, cash-on-cash return, and monthly cash flow.
Resistor Color Code Calculator — 4, 5 & 6 Band Electronic Decoder
Free, private, serverless resistor color code calculator. Decode 4-band, 5-band, and 6-band resistors with visual stripe previews, tolerance limits, and temperature coefficients — 100% in-browser.
Resume Builder — Free Professional CV Creator & ATS-Friendly Designer
Free, private client-side resume builder with 6 professional ATS-friendly templates. Design, customize, and export high-resolution CVs as PDF directly in browser memory without sign-ups.
Ring Size Converter — International US, UK, EU & Millimeter Chart
Free, private, serverless ring size converter. Convert between US, UK (British), European (ISO 8653), Japanese, and internal diameter/circumference millimeters — 100% in-browser.
Roofing Calculator — Roof Pitch, Material Squares & Cost Estimator
Free, private, serverless roofing calculator. Calculate sloped roof surface area, roofing squares, shingle bundles, underlayment rolls, and materials cost for gable, hip, and shed roofs — 100% in-browser.
SMD Resistor EIA-96 & Chip Code Decoder
Free, private, serverless in-browser SMD resistor chip code decoder. Decode EIA-96 1%, 3-digit E24 5%, 4-digit precision, and milliohm shunts with visual chip preview.
SVG Optimizer — Clean, Minify & Compress Vector Graphics
Free, private, serverless SVG optimizer. Remove XML bloat, strip editor namespaces (Inkscape/Illustrator), clean metadata, and minify vector graphics — 100% in-browser.
Screenshot Beautifier — Free Online Screenshot Mockup Maker
Transform plain screenshots into beautiful mockups with gradient backgrounds, macOS browser frames, iPhone and MacBook bezels, drop shadows, and 3x retina PNG export — 100% client-side with zero server uploads.
Scrum Sprint Burndown & Velocity Studio — Agile Linear Forecast & Story Points Tracker
Free, private, serverless Scrum burndown chart & velocity studio. Track story points, linear regression sprint completion forecast, scope creep analysis, and SVG/PNG export — 100% in-browser.
Shoe Size Converter — US, UK, EU, CM & Mondopoint Chart
Free, private, serverless shoe size converter. Convert between US, UK, European (Paris Points), Japanese, and Mondopoint centimeters for men, women, and children — 100% in-browser.
Signal-to-Noise Ratio (SNR) Calculator — Power, Voltage & Shannon Capacity
Free, private, serverless SNR calculator. Calculate signal-to-noise ratio in decibels (dB) from power or voltage, Shannon channel capacity, and spectral efficiency — 100% in-browser.
Signature Generator — Free Online Signature Maker & Digital Signer
Create professional digital signatures online for free. Type with 16 handwriting fonts or draw freehand with smooth bezier curves. Export transparent PNG & scalable SVG 100% in-browser with zero server uploads.
Terms of Service Generator — Free Custom Legal Terms & Conditions
Free, private, serverless terms of service generator. Create custom, legally structured Terms of Service agreements for websites, SaaS, and mobile apps — 100% in-browser.
Timezone Converter — Free Live & Custom UTC Date Time Converter
Free, private client-side timezone converter. Convert live and custom timestamps across 400+ IANA global cities with automatic Daylight Saving Time (DST) adjustments.
Typing Speed Test — WPM, CPM, Accuracy & Keystroke Analytics
Free, private, serverless typing speed test. Benchmark words per minute (WPM), characters per minute (CPM), keystroke accuracy, and error heatmaps — 100% in-browser.
Unit Price Calculator — Compare Cost Per Unit & Package Sizes
Free unit price calculator to compare prices across different package sizes, weights, and volumes to find the best deal — 100% client-side, 100% serverless.
Username Generator — Create Unique Online Handles & Gamer Tags
Free, private, serverless username generator. Create creative, memorable usernames, cool gaming tags, and professional handles with zero tracking — 100% in-browser.
Video Compressor — Reduce Video File Size Online Free
Free, private, serverless video compressor. Reduce MP4, WebM, and MOV video file sizes in your browser with zero quality degradation — 100% in-browser.
Video Resizer — Resize Video Dimensions & Aspect Ratios Online
Free, private, serverless video resizer. Scale videos to 4K, 1080p, 720p, 9:16 TikTok, 1:1 Instagram, or custom dimensions — 100% in-browser.
Video Thumbnail Extractor — Capture High-Resolution Frames Free
Free, private, serverless video thumbnail extractor. Capture crisp still frames at any timestamp or batch extract intervals — 100% in-browser.
Video Trimmer — Cut & Trim Video Clips Online Free
Free, private, serverless video trimmer. Cut and trim video files with frame accuracy and lossless stream copy — 100% in-browser.
Voltage Divider Calculator — Vout, Current, Power & Loaded Circuit Analysis
Free, private, serverless voltage divider calculator. Compute output voltage (Vout), circuit current, component power dissipation, and load resistance effects — 100% in-browser.
WebHID Gamepad Drift & Precision Cockpit — Controller Calibration & Polling Analyzer
Free, private, serverless Gamepad drift tester & precision cockpit. Test stick drift, 360° circularity error %, polling rate (Hz), and export hardware reports — 100% in-browser.
Webcam Test — Check Camera, FPS, Resolution & Video Feed Online
Free, private, serverless webcam tester. Test your webcam video stream, verify real FPS, detect hardware resolution, and take test snapshots — 100% in-browser.
WhatsApp Chat to Court & Legal PDF Studio — Evidence Generator
Free, private, serverless in-browser WhatsApp chat to court-admissible legal PDF converter. Generate Bates-numbered evidence exhibits, PII redactions, and SHA-256 chain-of-custody verification.
Wire Gauge Calculator (AWG) — Conductor Sizing, Voltage Drop & Ampacity
Free, private, serverless wire gauge calculator. Find the right AWG wire size for current, voltage drop, and distance — copper and aluminum — 100% in-browser.
Word Scrambler — Jumble Letters, Anagram Maker & Text Shuffler
Free, private, serverless word scrambler and anagram maker. Jumble letters within words, shuffle sentences, or create readable typoglycemia puzzles — 100% in-browser.
Work Days Calculator — Business Days Between Dates
Free work days calculator to count business days between two dates, excluding weekends, calendar days, and weeks — 100% client-side, 100% serverless.
dB (Decibel) Calculator — Convert Ratios, Add Decibels & SPL Chart
Free, private, serverless decibel calculator. Convert power and voltage ratios to dB, sum incoherent sound sources, and explore SPL acoustics — 100% in-browser.
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