Useful Tools

An interactive chart puts published penis-size measurements, condom sizes, and related figures on a shared true-to-scale ruler.

Upload a run or ride route to get a map and estimated total value of the homes along it.

An open-source tool turns logos, illustrations, line art, and pixel art into SVG shapes whose neighboring colors share the same edge.

A free, no-signup comparison of U.S. veterinary-assistance funds, with filters for a pet’s needs and household circumstances.

A free guided tool that creates hardship and follow-up letters for Australians struggling with loan repayments or energy bills.

An interactive 3D solar-system explorer and location-based sky map, with controls for time, viewpoint, celestial objects, weather, and aurora.

Limal presents a shopping app that compares scanned items with a photographed checkout receipt to flag quantity or price discrepancies.

An interactive AI-safety strategy simulator lets you steer policy choices through 2,000 modeled futures from 2027 to 2040.

This free iPhone app reads 57 barcode types, breaks their contents into fields, and explains what they mean.

A free calculator estimates when a permanent resident can file Form N-400 using their green-card date and U.S. travel history.

A free interactive globe maps internet-satellite constellations, local visibility and passes, with an optional view of modeled packet routes.

A comparison guide for certified ductless heat pumps, with published cold-weather capacity data and a calculator for heating-cost scenarios.

An interactive atlas for exploring reported merchandise-trade relationships across CARICOM and the wider Caribbean, using UN Comtrade data.

A daily map game asks players to draw countries, states, or shared borders on terrain maps, then scores the match.

A searchable Japanese-language index layers restaurant guides, design-award selections, and clothing stockists by city and neighborhood.

Is This Real lets people submit a letter, text, or email for a plain-language assessment of whether it appears legitimate.

A free garden planner for laying out raised beds, checking plant spacing and neighbors, and finding planting dates by ZIP code.

A data-focused guide and calculator for comparing certified pool pumps, estimating running costs, and sizing circulation by flow.

Encore5K turns a compatible 27-inch 5K iMac into a second display for a Mac, using a Thunderbolt or direct Ethernet connection.

A local-first reference manager for reading and writing in VS Code, the terminal, and the browser.

A free, unofficial Marvel Puzzle Quest tool that builds teams from your roster and simulates matchups against opponents.

A free tracker lists upcoming smallsat rideshare launches, schedule changes, and related FAA, FCC, and NOAA licensing items.

Highlit Docs detects code inside Word documents and PDFs, then returns versions with the code syntax-highlighted.

A source-linked tracker compares 35 AI offerings by FedRAMP status, DoD Impact Level, and whether they can be used with Controlled Unclassified Information.

An iPhone camera app that recreates the look, sound, frame rate, and on-screen details of vintage camcorders, film cameras, and other video devices.

A pair of tire-size and wheel-offset calculators, backed by fitment guides that explain the measurements and formulas.

A public tracker estimates when medical progress might add more than a year of healthy life for every year that passes.

A free, open-source set of browser tools for running Backdoors & Breaches tabletop incident-response sessions remotely.

A free RV fit calculator compares your rig’s combined length with campground limits and shows the result in a to-scale diagram.

A browser-based tool that turns chord charts, photos, Word files, sheet music, and song-library backups into editable ChordPro files.

A browser-based chess review tool turns finished-game PGNs and engine analysis into plain-English explanations of individual moves.

A local-first image library for saving pictures from the web, then sorting and finding them with tags, collections, keywords, and color filters.

A free calendar builder maps rotating work schedules across a year, with options to share, export, print, and estimate pay.

A macOS utility that restores a full-screen app grid, with folders, swipeable pages, and search.

Déjà View rebuilds photos and phone video of real places as 3D worlds that can be explored in a browser or headset.

A deposition-preparation service syncs testimony to certified transcripts and returns files formatted for trial software.

A weather dashboard combining El Niño and La Niña outlooks, historical comparisons, local weather context, and live radar.

Flyleaf turns a GEDCOM family tree and written stories into a printable family-history book and a browsable family website.

A rowing-focused site for exploring Head of the Charles results, analyzing GPS tracks, and racing a digital version of the course.

A cited index of Japanese knife makers, steels and retailers, with a three-question finder that recommends a knife.

LogicForge is a circuit simulator with a browser editor and downloadable desktop versions, built for exploring digital logic and electrical circuits.

Moxie presents moderation, logging, roles, tickets, leveling, and other server tools, plus a text-based way to configure a whole server.

A free, worldwide forecast weighs aurora chances, visible launches, meteor showers and space-station passes against local clouds, darkness and moonlight.

A browser-based tool that converts images, GIFs, or existing bitmap code into Arduino sketches for monochrome OLED displays.

A free colour tool for miniature painters to compare paints across brands, build colour ramps, and keep track of their collection.

Platen turns PDFs and images into scanned-looking PDFs, using adjustable presets for looks such as photocopy, fax, flatbed, and phone photo.

A free generator for making QR codes as two-color 3D-printed stands, key fobs, or wall plaques.

A Japanese-language reference for comparing RPG magic by role, element, game, and naming progression.

A solo-built prototype uses face-muscle signals to turn mouthed phrases into text in the app already open on a laptop or phone.

An interactive football strategy game lets you make play calls in real NFL starting situations and simulated continuations.

A searchable reference comparing data-use terms and security assurances across 60 work AI tools.

A research atlas for exploring geological hydrogen through Algerian contexts, published global cases and USGS prospectivity data.

A Mac dictation app that types Hindi, Hinglish, or English into the app you’re using.

A lightweight macOS menu-bar app that monitors USB link speeds and flags camera, cable, or card-reader drops during tethered work.

A free, open-source desktop app that mirrors, backs up, or syncs folders and drives between macOS, Windows, and Linux.

A free browser-based generator for customizable 16–32 px pixel-art weapons, potions, armor, and other RPG loot, with item and sheet exports.

A Thai-language hub for fixing mistyped text, exploring language conversions, and browsing lessons and stories about languages.

Dynamic Drainage Design is a Windows program for laying out farm ditches and tile drainage from elevation data, then exporting plans to machinery or drainage controllers.

A free, open-source desktop player for slowing down music, finding beats and bars, and looping tricky passages while you transcribe.

A Chinese-language catalog of 226 e-ink readers and writing devices, with filters for specifications such as screen size, frontlight, color, and Android openness.

A browser-based tool that previews Fujifilm film-simulation approximations on RAF raw files, with controls for related image settings.

A meal tracker that estimates ingredients from a photo or voice note, shows USDA-based calorie calculations, and lets you correct portions.

A free, browser-based tool for creating and printing barcode labels for LTO and IBM 3592 tape cartridges.

Quietworks presents browser-based tools for bingo cards, word searches, homeschool transcripts, handmade-product pricing, and frost-date planning.

A calculator for comparing GPU rental options with the costs of buying, financing, and hosting your own racks.

A city-by-city reference for grease-trap requirements, with sizing and pump-out tools, inspection guides, and a directory of pumping companies.

A free vegetable planting planner turns local frost dates into seed-starting, transplanting, sowing, and fall-planting windows for 27 vegetables.

An open-source command-line tool that labels Gmail, archives selected mail, and can unsubscribe from pitches it verifies.

A free, no-sign-up tool walks US patients through checking a medical bill against an Explanation of Benefits, investigating a denial, or looking for duplicate charges.

A free directory of independent US shops that welcome new brands, with guidance on how to pitch each one.

An interactive clay typography studio lets you type up to 12 letters, then work through shaping, drying, bisque firing, glazing, and a second firing.

A five-step browser experience for composing a personal letter, then styling its signature, folds, envelope, photos, and soundtrack.

A state-by-state guide and checker for comparing a vehicle’s repair history with lemon-law rules across all 50 states and DC.

Many Happy Orbits calculates ages and upcoming birthdays across planets, asteroids, a comet, and selected exoplanets.

A free writing app for Windows that organizes story planning, worldbuilding, and book drafting, with an Android app offered as a preview.

Munchy Mates is a downloadable desktop companion for Apple-silicon Macs, combining battery alerts and time-of-day behavior with file-to-Trash decluttering and five PDF or image tools.

An unofficial guide that helps fairgoers find food booths, rides, and amenities, with map layers and walking directions.

Offgrid66 is an iPhone hiking map for Lapland, built around offline maps, saved tracks, place markers and an emergency card.

An interactive wheel for turning, counting, and dedicating prayers across several religious traditions.

A browser-based checker sorts batches of PDFs by accessibility issues and estimates remediation effort.

A true-scale planner for laying out guitar pedals on real pedalboards, with checks for fit and power compatibility.

A browser-based audit compares AI support conversations marked resolved with later support tickets, using your own exports.

A browser-based tool that uses a Snapchat export to restore photo and video dates, locations, and captions.

A musician’s practice app that analyzes a song into separate instruments, chords, playable parts, and notation.

Three free calculators estimate live-sale fees, seller net, break-even prices, and show profit across Whatnot, TikTok Shop, and eBay Live.

A free web app bringing Queensland road events, public transport information, warnings, cameras and other official data together on one map.

A Hebrew-language collection of everyday tools, from supermarket price tracking and taxi-fare calculations to flight status and electricity-plan comparisons.

Sniff is a browser extension designed to search saved Instagram posts by caption, text in images, and what the images depict, with processing described as happening on your computer.

Spendari surfaces Commonwealth AI and AI-adjacent contracts nearing expiry, with agency, supplier, and keyword alerts in its paid Pro tier.

Suvana presents a Sri Lankan Sign Language platform for camera-based practice, sign recognition, speech-to-sign communication, and sound alerts.

A database of US water utilities’ reported hardness figures, with report dates, unit conversions, and USGS hardness classifications.

A browser sound playground lets you arrange voices in a spatial field, shape their behavior, record sounds, and share what you make.

A free set of seven woodworking calculators and planners for bowls, cabinets, lumber, sheet goods, and shop math.

A browser-based workflow for Barbados customs brokers that turns shipping documents into tariff-coded entries and related forms.

Desktop software for turning construction schedules, contract documents, and correspondence into Extension of Time claims and progress reports.

An interactive atlas for exploring where critical minerals are mined, refined, and traded, with supply-chain sites and trade flows.

An iPhone app that estimates crowd size as a range and produces a documented PDF report.

A free map of surface runoff paths across Croatia, modeled from national LiDAR terrain data.

A calculator for part-time workers, students, and people covered by a family member’s benefits, estimating how much more they can earn or work before reaching 2026 income thresholds.

Parameter Viewer is a browser demo for browsing and comparing CNC parameter backup files, with manual-linked descriptions.

Star Flock GPS combines turn-by-turn navigation with a map of publicly recorded surveillance cameras and nearby services.

A public beta for comparing all 39 TTSE listings, checking sourced company figures, and modeling dividend reinvestment under editable assumptions.

A hardware-fit checker estimates whether an open AI model can run on your GPU or Apple Silicon Mac, with memory and community benchmark details.

A free pattern maker turns a crocheter’s measurements and swatch into a written drop-shoulder sweater pattern, schematic, and printable copy.

9ballrunout lets players set up an 8-ball, 9-ball, or 10-ball rack and get a shot-by-shot route, including aim points, cue-tip positions, and cue-ball finishes.

A browser-based editor for creating and exporting app-store screenshots in the sizes and languages required by major app stores.

Incantone presents Grimoire, a music tool that catalogs sample libraries and turns MIDI cues into Cubase sessions using instruments you own.

A local rowing-conditions app for the Connecticut River launch at Putney Rowing Club in Vermont.

SnapSong analyzes downloaded Spotify audio-history JSON in your browser, showing listening rankings and allowing a summary CSV export.

A browser-based tool fits an unweighted linear calibration curve from known concentrations and measured responses, then provides residuals and exports.

An online logbook for commercial divers, with offline entry, QR-code supervisor sign-off, and records designed to travel between contractors.

A subscription data service for employee-benefit audit firms, forecasting U.S. retirement plans expected to need their first independent audit.

A bilingual meal-planning tool that recommends what to eat, how much, and which of UCSB’s four dining commons to visit.

A free assistant for parents to organize a child’s IEP, keep notes, and prepare printable meeting materials on their own computer.

A free U.S.-focused guide and toolkit for people contesting insurance denials, with letter templates, deadline estimates and state insurance department links.

A free, open-source IRC client for Windows, macOS, Linux, and Android, with channel tools, inline media, bouncer support, and built-in themes.

A browser-based image compressor with presets for photo and signature uploads to Indian exam forms.

ndt.support offers free calculators and reference tools for nondestructive-testing technicians, including certification-hour tracking, exam reminders, and code-revision information.

An interactive comparison guide for 21 dog and cat trackers, organized by reach, location, and three-year cost.

A refund-audit tool for Shopify brands that compares AI support agents’ closed tickets with Shopify and Stripe records.

The site organizes SEC filing events into dated accounting flags with severity scores, plain-English notes, ticker search, and historical outcome tracking.

A free address lookup that uses Florida roof-permit records to estimate a home’s roof age and check it against the state’s 15-year insurance rule.

A free planner for designing home saunas, cold plunges and hot tubs, with calculators for fit, heat-up time, running costs and electrical requirements.

A Japan-focused app that says it relays JMA earthquake, tsunami and weather notices, rates them for a user’s location, and explains them in English, Japanese and Spanish.

A free, open-source viewer and toolkit for browsing, inspecting, and converting SOLIDWORKS and other CAD files on your computer.

A joke-court tool turns everyday friendship grievances into fictional cases, verdicts, and shareable case files.

Tunnelfunk is an Android app that combines train Wi-Fi and mobile data to keep connections going when one network drops.

Tollvane manually audits creator ads against their usage agreements and platform permissions, then delivers a status spreadsheet.

A free Mac app keeps one cricket match’s live score beside the notch, with optional alerts and styling through a Pro licence.

A Flushing restaurant owner-chef’s back-office site combines operating notes, local research, and practical tools for restaurant work.

AfterScrim reads Rainbow Six Siege replay files and presents rounds as 2D reviews, match reports, player stats, and shared team rooms.

A Japanese exhibition search service that sends LINE notifications for artists or search conditions you follow.

A mobile video maker that turns Quran recitations into vertical videos with word-by-word captions in the Madina Mushaf script.

An unofficial fan tracker follows a Pokémon TCG collector’s challenge to find an art card for every Pokémon in the National Pokédex.

Baridi describes a temperature-monitoring tool that flags sustained fridge excursions and displays a replayed breach timeline.

A free board-and-batten calculator lays out batten spacing, wall marks, counts and a stock-board cut list.

A browser-based converter for preparing SVG designs as DXF files for laser cutting, with guides to common file-import problems.

BeforeTheRun presents narrated, browser-based flyovers of race routes, with course terrain, elevation, aid stations, cut-offs, and race-morning wind.

A set of trade-by-trade scope checklists and free tools for comparing construction bids on the same scope.

A BMW repair-price comparison that breaks out owner-reported costs by repair, engine, and shop type.

A browser-based assistant for tracking multiple 75-ball bingo cards, including cards photographed from paper.

A Turkish-language catalog of 50 medicinal and ritual plants, organized by region, use, evidence level, and safety category.

A browser-based nautical planner turns chart waypoints into courses, distances, travel times, and wind information.

A browser-based generator that turns box dimensions into laser/CNC cut files or a 3D-printable STL.

A Utah trip planner combines forecasts, campground availability, river conditions, bird reports, and avalanche information into a trip sheet with a map and timed itinerary.

A tournament platform for Brazilian VGC and TCG communities, with registration, roster checks, pairings and match reporting.

A UK comparison site listing prices for Mounjaro, Wegovy injections, Wegovy tablets and Saxenda, with pharmacy and pack details.

A dated, sourced tracker pairs GPU rental prices with a census of AI data-center campuses and their published capacity.

A beta Windows companion that maps HOTAS and steering-wheel controls to SimRail, including brake and throttle inputs, force feedback, and driving telemetry.

A free browser-based tool for recording custody exchanges, missed visits, expenses, and messages, then exporting a dated PDF timeline.

A public comparison of Canadian prices for DEXA scans, VO2 max tests, and whole-body MRIs, with sources and check dates.

A calculator and comparison guide estimate what AI-generated video costs per usable clip across 12 tools.

A sourced reference for follower, subscriber, watch-time, and other entry requirements across creator monetization and brand-deal programs.

The site lists mystery, crime and thriller magazines, contests, anthologies and publishers accepting submissions, with deadlines, fees and pay details.

A free Premiere Pro extension for cutting silence, generating Hebrew captions with word highlighting, and applying text animations.

A personal accounting app for tracking income, spending, accounts, investments and debts across Afghan afghani, US dollars and other currencies.

A browser-based checker that reviews car purchase or lease quotes for fees, add-ons, rate markups, and unexplained payments.

Workflow software for small U.S. court-reporting agencies, covering deposition jobs, transcript copy orders, invoicing, and reporter pay.

A free, no-account dishwasher diagnostic asks about symptoms and returns a likely cause, a first safe check, and guidance on whether to DIY or call a technician.

A session-tracking app for kiteboarders and other water-sports crews, with live location sharing, alerts, session stats, and Apple Watch support.

A free material-first selector that guides users toward drill-bit choices and technique for common materials.

A car-specific ECU finder pairs fitment and seller-price comparisons with a directory of dyno-equipped tuners.

A free calculator for assembling Elsword raid parties of up to six and combining their buffs, debuffs, and support effects.

A free estate-accounting tool for tracking assets, receipts, payments, and distributions, then assembling a Summary of Account.

A searchable, categorized guide to US patents reported lapsed for unpaid maintenance fees.

A searchable comparison of green fees at 358 public California golf courses, with prices organized by region and course.

Fatih describes an offline earpiece designed to notice an imam’s hesitation and offer a quiet Quranic prompt.

A downloadable PDF editor with additional tools for making comics, books, and screenplays.

An independent news site and tracker follows flying cars, eVTOLs and air taxis, including prices, certification status and expected deliveries.

A Korean-language planner compares estimated flight-plus-three-night hotel totals across 15 family destinations, with child fares included and departure dates broken out.

A searchable catalog of equipment used by tech YouTubers and podcasters, with items linked to their sources.

A cannabis-strain reference that pairs lineage claims with source and confidence labels, chemistry summaries, and a grow assistant described as citing its sources.

Bordr presents board-governance software for Nigerian companies, covering meetings, votes, minutes, board packs and statutory registers.

A downloadable desktop tool that captions Discord and game audio, with translation and streaming features also described on the site.

A Mac Markdown app for commenting on AI agents’ documents and reviewing their edits.

Failurecase helps teams turn support policies into editable evaluation cases and checks for support agents.

GenVerdict describes a free diagnostic that guides standby-generator owners through fault-code or symptom-based checks and helps distinguish homeowner fixes from dealer jobs.

A country-by-country directory compares where sellers can use Stripe and other payment platforms, including alternative payout routes.

Pullback presents a Mac app that indexes screen activity and makes that context available to AI agents.

Retro Console offers Android TV, Apple TV, and macOS clients for browsing and playing games from a local collection or a self-hosted library server.

A public checker compares local AI models with GPUs, Macs, and mini PCs across Q4, Q8, and FP16 quantizations.

Sorting Room turns a folder such as Downloads into a card deck, letting Mac users file downloads into project folders with keystrokes.

A portion-tracking scale for ice-cream shops pairs physical buttons with an app that records servings against shop-defined standards.

Gigpack gives bands one link to share a show’s recordings, set order, song details, and logistics.

A free football statistics explorer for comparing player careers, leaders, leagues, and advanced stats, including xG.

GrabPaste saves copied text, links, and files in a searchable clipboard history shared between Mac and iPhone.

A Windows companion for iRacing that presents itself as a voice spotter, driving coach, fuel strategist, setup helper, and stream toolkit.

A sourced index compares security and AI-data practices across 59 go-to-market tools.

A browser-based generator creates individual codes or batches from CSV, with PNG/SVG downloads and options for printing label sheets.

HealthLumio presents Apple Health data as a personal dashboard of activity, heart, sleep, blood pressure, and body measurements, with long-term trends and comparisons.

A browser extension for Chrome, Edge and Brave that says it can search locally for things you have seen, not just the links you visited.

A team-by-team guide to NBA local TV channels, with a ZIP-based League Pass blackout checker and a nightly game grid.

The site lets residents in Jaipur housing societies pool bookings for home services so vendors can handle multiple flats in one visit.

An independent archive for browsing public impound-vehicle auctions across cities, with decoded specs, recall data, photos and lender status when listed.

A native Mac app that tracks connection drops and turns the record into a PDF report for your internet provider.

Isolait presents two iPhone and iPad apps: one isolates and captions a voice in noisy surroundings; the other softens overwhelming sound while keeping voices clear.

An open-source macOS utility that transcribes speech into the active app and can optionally clean up text or carry out spoken interface commands.

A Japanese guide that turns septic-system maintenance duties into a checklist and organizes inspection agencies, fees, and contractor registers by prefecture.

A Pakistani wedding invitation service combines event details, guest-specific links and RSVPs in a single WhatsApp-friendly workflow.

Kanzei lets users search U.S. HTS codes by code or product name and inspect tariff information and revision history.

A Japanese search and comparison site for municipal and privately operated allotment gardens, with filters for location, plot size, cost, and amenities.

A record-keeping tool for licensed British collections that fills in species data, checks annual counts, and formats returns to match the required table.