Useful Tools

An interactive tool that projects an earthquake’s candidate fault planes and their uncertainty onto the ground surface.

A free, open-source tool for calculating low-voltage electrical installations under Mexico’s NOM-001-SEDE-2012 and producing a calculation memo, load schedule, and single-line diagram.

A searchable guide to Japanese inns and onsen, with tattoo rules checked against each inn’s own published information.

A location-based eclipse planner calculates local totality times, duration and Sun altitude, with historical cloud percentages for towns along the path.

A comparison resource for online mini-splits, bringing together certified performance figures, manufacturer information, prices, and installation-related warranty terms.

Mimikl is an interactive browser playground that turns toy recipes, pictures, and 3D files into manipulable digital objects.

An open-source, in-browser tool that fills gaps in a map from related layers, labels measured and predicted pixels, and assigns uncertainty to predictions.

A browser-based editor for making animated, interactive lessons with a stage, timeline, and keyframes.

A daily scorecard compares Kansas City TV weather teams, station websites, the National Weather Service and computer models against observed weather at KCI.

A free collection of Urdu text tools for converting InPage text, repairing PDF text, typing and checking Urdu, and making poetry images.

Qarip catalogs free fonts that support Kazakh letters and brings together tools for testing, converting, and setting typography.

This free, open-source tool helps instructors convert STEM course PDFs into web pages with MathML equations, repaired headings, and figure descriptions or flags.

A free, open-source library for downloading and reading reference material offline on macOS or Android.

A Wordle helper ranks possible guesses using the puzzle’s history and patterns in the editor’s past choices.

A free checker estimates what a follower might have kept after copying a Solana wallet, accounting for delay, slippage, and copy-bot fees.

A free browser tool that converts music notation, MIDI, or MusicXML into guitar tab with playable fingering and guitar playback.

A free beta plugin for The Lord of the Rings Online that brings combat, inventory, travel, deeds, PvMP and other tools into one companion.

An Android app for the Soest/Bad Sassendorf airfield that displays nearby aircraft, warns about traffic near winch cables and logs glider launches.

A public monitor of daily, monthly, and all-time weather records, with station-level details, storm and event tracking, and historical analysis.

An Android keyboard that turns Latin-letter typing into Amharic Fidel, with Ethiopic numerals and offline suggestions.

An interactive chess-opening map lets visitors play moves, explore named branches, browse famous games, and upload a game for replay.

A Windows companion app for Le Mans Ultimate that gives sim racers race calls and answers through a push-to-talk radio interface.

A free, non-commercial map tracks UK North Sea oil and gas, offshore wind and tidal energy on a monthly timeline from 1975 to today.

A regional date-planning guide for Buffalo and Western New York, with 183 listings, event picks, and interactive ways to assemble an outing.

A free, open-source chess trainer that uses a player’s Lichess games to make spaced-repetition drills on a real board.

A mobile-friendly speaking practice tool for truck drivers preparing for roadside English checks.

A free, browser-based workflow for checking medical bills, screening for assistance, preparing an insurance appeal, and comparing charges with an EOB or estimate.

A Swiss education researcher’s site collects free classroom tools, alongside research, short videos, and browser-based media experiments.

A WhatsApp-based assistant that guides athletes, coaches, and officials through event paperwork, then gives organizers a queue to review and approve.

Hooke is an open-source Mac workspace for finding and running microscopy and bioimage-analysis models without using a terminal.

A set of free Australian building and garden calculators estimates materials for jobs from concrete slabs and brick walls to decking, fences and mulch.

A free French-language breathing guide and timer for people experiencing rumination after meals, with no account required.

A Mac and Windows app for sports photographers to import, cull, tag, caption, and deliver game photos.

WordBridge offers daily aphasia practice across picture naming, sentences, conversation, writing, listening, and real-life situations.

A public archive that tracks companies’ terms, privacy policies and related documents, with version comparisons and grades.

A searchable directory of martial-arts places across Okinawa, with filters for discipline and municipality.

A weekly, opponent-adjusted efficiency ranking and scouting page for Division I HBCU football.

Free, open-source Mac software for turning sketches, images, SVGs, and lettering into machine-embroidery designs.

A Japanese guide to ceremonial customs, with free tools for writing, checking, and printing formal messages and document examples.

A free calculator turns screen dimensions and seating distance into game-specific field-of-view settings for sim racing.

A browser-based tool converts photos into printable craft patterns, with DMC colors, stitch symbols, and floss estimates.

A site-specific forecast for Monterey shore dives, combining seven-day outlooks with live ocean data and ratings for local dive sites.

A free, no-sign-up tool invites owners to upload photos of an opened OneKey, Ledger, or Trezor board for a visual implant check.

A free Japanese toolbox for office files, PDFs, photos, audio and video, and everyday calculations.

A WhatsApp service for checking whether a shop’s car-part quote is fair against prices from other shops in Abossey Okai, Accra.

A free browser extension lets streamers blur or cover parts of videos and web pages before their browser is captured on stream.

A public tracker organizing Guangxi hospital procurement notices by city, hospital, category, and procurement stage.

公金支払いDB compares payment methods, fees, and rewards for Japanese taxes and public utility bills by municipality and bill type.

A bulletin-making tool for Seventh-day Adventist churches that turns a service schedule into a print-ready bulletin.

A free directory of email-security and MSP tools, paired with a domain-authentication checker and practical setup guides.

A Mac utility for correcting existing text in a PDF while preserving the line’s embedded font and leaving other page content in place.

A digital receipt and post-payment toolkit for hospitality and retail, where customers tap an NFC or QR tile to open receipts, loyalty stamps, and table bills.

A filterable directory that helps non-coders compare local AI models by memory needs, license terms, and trust scores.

A passcode-protected career-matching tool for Omega Psi Phi’s Xi Psi Chapter at SC State, designed to connect members with four brothers who can help in their field.

An offline occupational-health tool for Tunisian physicians, combining employee files, examinations, certificates, campaign calendars, and annual reporting in one file.

A Kolkata Durga Puja map for planning pandal routes, checking in, and seeing friends on the map.

A Mac app captures what’s on screen with a double-⌘ press, then names and files the capture for later search.

A project tracker for Austin permits and approvals that brings case statuses, deadlines, and follow-ups into one schedule.

NavShield is a navigation app for driving and walking that aims to keep guiding users when GPS is jammed or spoofed.

A planned phone app that plays 20 responsive novelty sounds through an electric car’s speakers, with a $4.99 one-time pre-order.

A fan-made Czech localization and interface project for World of Warcraft Classic Era and WoW Forever, covering quest text, character voices, and game UI.

biddecide filters public procurement notices in Latin America, Africa and the Caribbean, and offers companies Go/No-Go decision memos for opportunities matched to their profile.

A local traffic map gathers Fort Wayne and Allen County closures, crashes, hazards, events, construction, and transit detours.

A planned Android navigation app for drivers in Ukraine that combines satellite signals, phone sensors, mobile networks, Wi‑Fi, and offline maps to estimate a vehicle’s position.

A searchable directory of 92 free and freemium tools for small businesses, organized into 12 categories and annotated with plan limits.

A public audit scores whether shopping agents can find, read, and add products to a Shopify store.

A dashboard for ramp, apron and cargo crews that brings airport weather, notices, flight traffic, turnaround tasks and shift-support tools together.

A macOS clipboard manager that organizes seven types of copied content, converts and exports it, and offers a read-only local MCP endpoint for AI clients.

A Michigan U.P.-based ice-fishing gear tracker pairs retailer prices with head-to-head comparisons and beginner buying guides.

A French configurator for window-and-door fabricator-installers that combines product specifications, installation conditions, and quote lines in one workflow.

The site offers auction-sheet translation, landed-cost estimates, and import-eligibility checks for Japanese cars headed to Australia, New Zealand, or the US.

A free Pyrex and Snapware finder that matches replacement lids to stamped container codes and builds a combined shopping list.

A mobile bookkeeping app for small Brazilian shops that records sales from chat-style messages and tracks stock, profit and customer credit.

A free, browser-based tool turns a photo into a Japanese kumiko-style panel design, with controls for size, lighting, patterns, and filament colors.

A set of free kitchen tools converts weights, cups, spoons, butter measures, and recipe quantities by ingredient.

A U.S. dropzone weather dashboard with hourly jump-weather estimates, winds aloft, observations, radar, and a seven-day forecast.

This technical tool models drained cavity expansion in NorSand, with single-case analysis, sensitivity studies, and multi-case CPT calibration.

A free, open-source Windows desktop app for predicting WiFi coverage, surveying real sites, and producing client-ready reports.

An unofficial Formula 1 fan hub combining a playable Marina Bay hot lap with season data, team views, championship scenarios and race explainers.

A free planner turns raised-bed dimensions and material choices into a lumber cut list, soil estimate, cost estimate, and printable shopping list.

An in-page calculator estimates language-model memory needs from model configuration, weight format, context length, and other inputs.

Raw Smith presents a non-destructive RAW photo editor for iPhone, iPad, and Mac, with a TestFlight beta offered ahead of its App Store release.

A Spanish-language browser tool for editing PDF text, replacing repeated terms, and inspecting document details.

Glove is an open-source field-service tool for small trade businesses, covering jobs from booking and on-site work through sign-off and invoicing.

A market-research tool comparing independent Shopify pet stores’ product shelves, brand distribution and dog-supply search phrases.

A tool for small oil-storage sites to check whether the federal SPCC rule may apply, assess Tier I eligibility, and prepare a plan for review and signature.

SpeciesViewer is a free Windows desktop program for organizing nature photographs around species, trips, and collections.

A free, no-sign-up tool that plays a driving, walking or cycling route through Google Street View, from the starting point to the destination.

A free toolkit of calculators, planners, trackers, and daily guides for players of Top Lords.

An interactive migration map and research planner help people trace an immigrant ancestor to their town of origin.

A browser-based tool for laying out ventilation duct networks, checking their performance, and viewing airflow in 3D.

A browser-based tool helps trusted people verify each other on phone calls with a shared authenticator code that changes every 30 seconds.

A browser-based planner for laying out Wi-Fi access points on floor plans, with a live signal-map demo and support for multiple hardware brands.

SkyPower Bench presents aviation market intelligence that connects aircraft flight activity with fleet supply, operator capacity, asset histories and market values.

A no-sign-up checker for estimating whether an uploaded, pasted, or linked image was AI-generated, with an explanation of the signals behind its result.

Sparring offers families practice scam messages and calls for older relatives, followed by an immediate explanation and coaching tip.

A motion-design app uses adjustable behaviors and real-time GPU previews to animate layered projects.

DropShift is a DAW plugin that shifts whole guitar chords down by one to seven semitones or an octave, without retuning the strings.

A searchable reference to Age of Empires III: Definitive Edition civilizations, units, cards, technologies, and matchup counters.

Autumn 3D is a pre-alpha 3D modeling tool for creating and editing polygon meshes, with OBJ import and export.

A forthcoming iPhone and Apple Watch app uses a golfer’s direction and distance estimate to map and guide a search for a lost ball.

A free, two-way Bangla text converter for moving between legacy Bijoy/ANSI text and Unicode.

An open reference for e-bike, scooter, and EV battery specifications, replacement packs, repair and recycling locations, recalls, and safety information.

A searchable comparison of beard balms by scent, brand, size, price per ounce, hold, and ingredients.

A practical guide for opening, running, and closing a family cabin in the Adirondacks, with checklists, videos, and written instructions.

A beekeeper-focused app for recording hive inspections, mite counts, treatments, honey, and seasonal observations by voice or touch.

Benta presents a point-of-sale, utang tracking, and inventory app for sari-sari stores, mini-marts, carinderias, and market stalls.

A Japanese searchable directory of motorcycle repair shops, filterable by region, service, make, engine size, and whether shops accept bikes bought elsewhere, customer-supplied parts, or older models.

A study tool for turning matching Mandarin and English recordings—or pasted text—into sentence-by-sentence listening practice.

A free collection of calculators for plant, process, site, shipping, electrical, materials and mechanical work.

A Rome-focused calculator for estimating urbanization charges, construction costs, and standard monetization for changes of use, with a technical report in PDF.

A map, release calendar, and visitor guides for finding trading-card shops and buying Pokémon, ONE PIECE, and Yu-Gi-Oh! cards in Japan.

A searchable bag library for comparing sourced product specifications and checking carry rules.

A Korean fan tool for tracking The Battle Cats gacha seeds, comparing draw tracks, and calculating routes to desired characters.

A directory of Brussels-area chess clubs, cafés, tournaments, and lessons, with locations and playing times.

A free seating-chart tool lets teachers arrange rooms, set student placement and grouping rules, and generate charts to print or project.

A $6.99 Mac app puts Claude Code sessions in an early-2000s Messenger-style chat interface.

A free, open-source clipboard manager for Windows and macOS that keeps a searchable copy history on your machine.

Cow Composer is herd-analysis software for Japanese clinical veterinarians, covering dairy reproduction, milk-yield, and genomic data.

A macOS driver and app for printing sharp 4×6 labels from Zebra ZPL printers, including labels embedded in letter-size sheets.

A free, no-login tool for turning marketplace shipping-label PDFs into 4×6 thermal-printer labels.

A Mac app that measures audio and video cues and adjusts each to a chosen loudness level for a live-show PA.

A free English-and-Spanish calculator that turns an EAD expiration date into a recommended DACA renewal filing window and downloadable calendar event.

A video notebook for dancers to mark, review, and organize moments from class or social-dance footage.

A Thai-language clinic-management app presented for dental teams, covering scheduling, staff administration, pay calculations, and clinic records.

A tool for turning flowchart images into editable Draw.io drafts, with a saved example visitors can inspect and edit locally.

A browser diagnostic that reports network and browser signals—including IP, protocol fingerprints, and DNS or WebRTC leaks—and compares them for contradictions.

diver.today presents five iPhone apps for dive planning, decompression, weighting, dive logs, and underwater video.

A DNS propagation checker that compares a domain’s answers across public resolvers, local networks, and its authoritative nameserver.

A French-language service helps people compose an animated letter, send it through WhatsApp, and let the recipient reply with a gesture.

Biometil presents a tablet app and administration panel for managing diamond-drilling mud preparation and field operations.

A lookup tool matches Exchange Web Services application IDs to apps, vendors, and any published migration plans ahead of Microsoft’s 1 April 2027 shutdown.

A browser-based teleprompter with voice-following, cue sections, and built-in video recording.

A phone-first planner for laying out livestock paddocks from a map of your land and the rolls of netting or polywire you have.

Fern is a URL tracer that says it follows redirect chains server-side and shows where a link eventually lands.

A browser studio for shaping flexible fabric structures and preparing them as 3D-printer G-code.

A browser-based designer for customizing paper airplanes, previewing the folds in 3D, and preparing print-ready plans.

An interactive atlas for Wisconsin’s Wolf River and Winnebago Pool, combining bathymetric charts and USGS gauge readings with fishing tools and a dock directory.

A Mac manuscript checker for novelists, with style and grammar reports for books in Ulysses, Scrivener, Word, Markdown, or plain text.

Bobolink presents offline-ready charts, rehearsal audio, and tablet syncing for bands moving from song ideas to live performance.

Orbitrace is a Mac and Windows app presented as a way to add speed, maps, lean angle, and other GPS or motion data to action-camera footage.

A converter for Singapore and Malaysia bank-statement PDFs that turns transactions into spreadsheets and checks their balances against the source statement.

StageMaster turns a video script from Claude Code or Codex into a one-take app walkthrough with voiceover, on a Mac.

GlowBop is a phone-, tablet-, or laptop-based console for turning LED curtain lights into music-reactive displays.

A free Mac menu-bar app for checking your camera, microphone, and speakers before a call.

A browser-based OCR tool for extracting embedded Chinese and Japanese subtitles from MKV or MP4 videos.

Headroom compares managed service providers’ PSA exports and contract PDFs to flag possible unbilled work, agreement drift, scope creep, and underpriced clients.

Hireway presents a job-search copilot for engineers: it checks postings against saved preferences and drafts application material from facts the user has confirmed.

A Vietnamese accounting tool that says it gathers invoices from the tax portal and email, checks them, and prepares them for bookkeeping.

A web app tracks a cooperative Horde encounter while players use their own physical decks at the table.

An address-based service that presents Toronto property records—such as permits, zoning, heritage and ravine rules—in a plain-English report for prospective buyers.

JobBosh presents a free estimating and quotation app for builders and tradespeople, connecting job details to cost estimates, supplier enquiries and customer quotes.

A browser-based tool that lets singers accompany songs by pressing keys in time while Keylark chooses notes from the chords it hears.

A savings calculator and free, open-source skill for asking an agent to help plan a Ghost hosting migration.

A weekly crop-advice tool for five Bihar districts, connecting local weather data and crop stages to suggested field tasks in Bhojpuri.

A $5 Mac app uses a double knock on the laptop’s base to hide open windows behind a decoy app, then restore them with another knock.

This French-language tool turns answers about a furniture project, its dimensions, materials, tools, and maker’s skill level into a build plan.

A browser-based tool helps home bakers assemble and print cottage-food labels using state-specific requirements.

A French-language collection of free calculators for climate-engineering work, from pipe sizing and air ducts to refrigeration and acoustics.

A meeting assistant for Russian, English, or mixed-language conversations that surfaces a private, source-linked note when something said conflicts with connected work data.

Larch presents 95 creator-made visual novels and related games, playable in a browser, alongside tools for making them.

A laser-component selector that asks six specification questions and offers a ranked shortlist alongside calculators, technical articles, and a route to suppliers.

A U.S. ZIP-code lookup for estimated last spring and first fall freezes, with USDA hardiness zones.

A composite lay-up calculator that turns part files or manual measurements into resin, hardener, fibre, and gelcoat quantities.

An Argentina-focused vehicle logbook that links owners with workshops, records maintenance by license plate, and sends reminders for inspections, insurance, and other expirations.

A proposed iPhone Pro app pairs site photos with LiDAR depth data so users can measure spaces later and produce reports.

A dated reference table compares AI coding tools’ plan prices and vendor-published usage limits.

A Chrome and Edge extension that replaces sensitive details in messages sent to AI chats, then restores them when the answer is copied back.

A Korean community and guide site for the game Road Nine, with build and engraving simulators, progression calculators, boss schedules, updates, and player-submitted guides.

A browser-based toolkit for mapping projected visuals onto surfaces, performing them live, and scheduling or sending shows to displays.

A free browser and desktop editor for drawing Merise/UML data models, with the relational model generated as you work.

A Mac app replaces the Dock’s Trash icon with a 3D toilet that reacts when you drag a file toward it.

A beta Android app for livestreaming from compatible DJI Pocket and other supported USB cameras, with bitrate controls, input-frame-rate detection, and logo overlays.

A Turkish-language privacy layer that says it detects and masks personal data in AI workflows, with keyed restoration and MCP, API, proxy, SDK, and CLI integration paths.

A French-language backgammon analyzer that diagnoses mistakes in match files and turns them into replayable practice.

A cut planner helps calculate mesh for multiple window screens and compare roll sizes, cutting allowances, waste, and prices you enter.

Micbox lets a group sing karaoke through their phones, with the sound playing from a TV.

Mountayns presents a multilingual map and directory of via ferrata routes across Europe, with grade and location filters.

A setup page for turning a Waveshare ESP32-S3-Touch-AMOLED-1.75C into a Muse-connected desktop voice terminal, with firmware compilation, avatar creation, browser-based flashing, and app pairing.

An Australian racing analysis project that profiles horses as athletes and scores their runs with an “expected wins” metric called xW.

A searchable map and directory of businesses and places in the Golan Heights.

A Japanese lookup tool matches humidifier and air-purifier model numbers to compatible replacement parts from five manufacturers.

A free desktop app turns videos in your music library into continuously playing, steerable channels.

A page-turning digital programme for dance and music performances, with a QR code for guests and a keepsake of their wishes.

A pair of nursing-writing builders helps users form PICOT questions from recent research or draft reflective journals from their own answers.

A model-and-brand guide for matching garage door openers with compatible remotes, keypads, batteries and other accessories.

Optophone presents an ambient-sound app for mixing evolving soundscapes with visualizers, aimed at sleep, focus, and breathing.

The site presents an on-premise live interpretation system that sends translated audio to meeting participants’ phones over room Wi-Fi.

Panda USB presents a Windows client that lets a customer share a phone’s USB connection with a remote repair technician.

A Romanian-language browser platform for drawing schematics, designing PCBs, and troubleshooting circuits with AI assistance.

A browser-based tool for writing paper tests, producing shuffled versions and answer keys, marking a class, and reviewing question performance.

A comparison site estimates setup, first-year, annual, and lifetime costs for pets ranging from jumping spiders to dog breeds.

Piped.email offers forwarding aliases for signups, with a way to transfer an alias when an account changes hands.

An interactive planner for laying out a shed, checking its structure, estimating materials, and preparing permit documents.

A set of appliance running-cost estimates and calculators, with country and electricity-price options.

A free Mac app for converting audio, splitting vocals, checking key and tempo, and making everyday edits.

A group Pomodoro study app concept with shared timers, weekly rankings, focus posts, and a garden that grows with each session.

A browser-based set of projector test patterns and diagnostics for checking alignment, focus, aspect ratio, grayscale, and safe areas.

An in-browser, rule-based tool reads Fountain screenplays for content categories, assigns age bands, and lets users test cuts and a bleeped broadcast edit.

A tool for MercadoLibre sellers that organizes claims, mediation cases, and returns by urgency, with cost tracking and help drafting replies.

A reseller-focused publication tracks official marketplace fee, postage, and policy changes, with a weekly email, comparison table, and free calculators.

A free, open-source tool that learns a photographer’s editing style from existing Lightroom catalogs and applies a first pass to wedding or portrait shoots on their computer.