Useful Tools

An interactive historical map collection follows four battles from 1899–1916 over present-day terrain, with a step-by-step account of each.

A cook’s AI-powered iPhone assistant for learning a restaurant menu and checking kitchen details by voice.

Drazil presents 46 free browser-based tools for PDF work, LaTeX typesetting, studying, and making narrated lessons.

A free desktop app for analyzing AiM motorsport sessions, managing compatible loggers, comparing laps, and creating data-overlay videos.

A free browser and Windows tool that turns 3D model files into dimensioned 2D drawings.

A free desktop app and command-line tool that crops scanned PDFs for easier reading on e-readers, tablets, and phones.

A free, multilingual digital astrolabe for exploring the sky by city, date, and time.

A free library of ESP32 projects pairs pin maps, parts lists, and Arduino sketches with browser-based serial and flashing tools.

The site lets US visitors enter a city or ZIP code and see illustrative fallout paths from potential targets, mapped against forecast winds.

This Japanese consumer guide helps people prepare for wildlife-removal contractors, compare written estimates, and find public help with contract or billing trouble.

A free typesetting tool for novelists that presents a workflow from manuscript files to print-ready PDFs and EPUBs.

A hiking journal and planning toolkit that tracks daily entries, mileage, budgets, resupplies, gear, and projected finish dates across 19 long trails.

Keyfill lets a show build animated graphics, run them from a rundown, and send fill and key to a switcher over SDI or NDI.

A weather tool for locations across Poland, with shareable meteograms and an hourly night-sky forecast for astronomy.

A Korean-language calculator estimates daily food portions for cats and dogs using their details, food calories, and treats.

A timestamped local dashboard gathers lake conditions, boat-ramp status reports, emergency links, fishing resources, and community notices.

An interactive map estimates satellite passes over a chosen location and shows public satellite imagery when it is available.

An iPhone app designed to turn everyday situations in Spain into guided administrative procedures, with help navigating official websites and keeping track of documents and deadlines.

A Hebrew-first collection of browser-based statistics calculators and research-methods guides for researchers.

A free browser tool that adds mosque-like room reverberation to a Quran recitation, with options to reduce background noise and save the result.

A free local calendar gathers Asheville-area camp, school, and seasonal activity signup dates, with filters and a planner for building a summer schedule.

A browser-based tool that makes clean PDFs or OCR text from PDFs and images, leaving hidden document content behind.

Free browser-based tools help people prepare dates, address and work history, foreign travel, and a checklist for the SF-86 security-clearance questionnaire.

A state-aware calculator compares solar lease, PPA, loan, and cash offers by cost per kilowatt-hour and estimated bill savings.

A Mac app that places scripts beside the camera and scrolls them in step with the speaker.

A browser-based ZX Spectrum arcade pairs game listings with an emulator for playing games and loading tape files.

A Czech-language iPhone podcast player that transcribes episodes on-device and lets listeners search those transcripts.

A boat-monitoring service that uses an Android phone left aboard to watch shore power, berth position, motion, and optional onboard instruments.

A class-management workspace for homeroom teachers, with tools for seat plans, duty rosters, student records, grade analysis, and end-of-term paperwork.

A free, self-hosted workbench that helps brick collectors track sets and parts, find missing pieces in loose stock, and decide which unfinished builds they can complete.

An Android speedcubing app that reconstructs smart-cube solves, tracks individual cases, and offers drills alongside a timer for WCA puzzles.

FMenuHK presents a tool for turning an old café menu photo into an editable lunch or dinner menu, then printing it or exporting it as a PNG.

A free Mac app for recording musical ideas, detecting their key and tempo, and finding riffs that might fit together.

An independent parody that tracks Microsoft 365 email downtime, turning a full day of outage into a countdown for the “5” in 365 to fall.

A free Mac app that turns speech into cleaned-up text and pastes it wherever your cursor is.

An open-source desktop app that turns photos or scans of handwritten and printed notes into Markdown, LaTeX, and editable Word documents.

A Mac utility that mounts more than 70 cloud services as Finder disks or keeps them in synchronized folders.

A playable bingo game for watching a murder mystery show, with solo cards and rooms friends can join.

Teaspoon is a forthcoming iPhone app for tracking fibromyalgia and ME symptoms, pain, sleep, food, and flares.

A Korean-language calculator compares benefits from Shinhan, Hana, and IBK 나라사랑 cards against a user’s spending and eligibility conditions.

A browser-based tool that uses photo metadata to match your pictures to games and bring up the game’s details.

A free, browser-based editor for changing PDF text, filling forms, signing, annotating, and rearranging pages.

A collection manager for music and video plugins that tracks purchases, helps with computer migration, and checks whether a bundle includes things you already own.

A browser-based turtle-graphics playground where learners write drawing commands in Polish or English.

A city-based guide to European figure-skating competitions, results, rinks, clubs, and camps.

A planning app for Indian weddings that coordinates rituals, guests and the day-of timeline while keeping each family’s private lists separate.

SlopShield is an Android app that reads text on short-form videos and swipes past ones that match its AI-content signals.

A browser-based editor helps Japanese youth baseball teams make consistent Instagram videos from game and practice footage.

A free crochet-pattern checker for amigurumi, with round-by-round stitch-count validation and a 3D shape preview.

An owner-maintained guide to the FlyEFII System32 electronic ignition and fuel-injection system, with reference material and related tools.

An interactive tide viewer shows local high and low times, a tide chart, and a global model of ocean tides.

A set of interactive 3D maps traces space from the giant planets’ moons to the edge of the observable universe.

Ursa offers field-recording and report software for ecology teams, alongside free browser tools for biodiversity calculations, coordinate conversion, photo metadata removal, and vegetation-plot statistics.

A browser writing coach for people writing in English as a second language: it corrects selected text, explains the rule, and turns recurring errors into exercises.

An interactive reference for exploring mechanical watch movements in 3D and finding which movement is used in a particular watch.

A Mac app that syncs camera and recorder clips into timelines for Premiere Pro, Final Cut Pro, or DaVinci Resolve.

Upload a squash match video to cut out breaks, find individual rallies, and map both players’ movement around the court.

Buttered analyzes a short snowboard or ski clip, guesses the trick, and gives a judge-style score with feedback.

A browser-based tool compares ACE refund reports with bank deposits to flag missing, diverted, short, or overdue CAPE tariff refunds.

A restroom finder for people who need to enter with the person they care for, with searches near a location or along a route.

A free Windows app counts chests from Fortnite replays and screen pop-ups, then displays the tally as an OBS or in-game overlay.

The site lets homeowners compare an insurance offer with offers from neighbors who report the same insurer and type of damage.

A free, open-source Mac menu-bar app that says it can keep a MacBook running with its lid closed and apply battery, heat, and timer cutoffs.

A fan-made HYROX tool turns race split data into an avatar replay and lets friends leave cheers through a shareable link.

A browser-based photo editor uses estimated depth and surface normals to make brush strokes, text, and lighting effects respond to a photograph’s geometry.

A free directory connecting dental-device manufacturers with FDA-listed device types, brands and models, clearances, and markets.

Digital Future presents a free, no-sign-up tool for turning short videos or photos into glowing green falling-code effects, with downloadable outputs.

A browser-based studio for customizing dot-matrix loading animations, previewing them in interface scenarios, and exporting them for apps.

A fan-built database and toolkit for Broken Ranks, with game items, maps, quests, timers, and upgrade calculators.

A browser-based Chinese poetry game built around choosing a character and answering with a poem that contains it.

A searchable beauty-research site that grades product claims from A to F, with dossiers, comparisons, and cited sources.

A curated directory of 192 tabletop roleplaying games, filterable by who’s playing, genre, and mood.

A Mac PDF reader that lets you ask questions about highlighted passages and save the answers alongside them.

A Japan travel-planning site with route search, nearby place-finding, destination guides, and tools for comparing itineraries.

A Japanese guide to exhibition-venue loading routes, with a dimension checker for equipment and carts.

A French-language data explorer ranks countries across more than 120 sports, then compares results with population and wealth.

A suite of calculators, world statistics, and alliance-coordination tools for Travian Kingdoms players.

An iPhone and iPad app that packages pet-care routines, house details, and emergency information for a sitter, with photo check-ins while the owner is away.

A free Windows app that searches the contents of documents, PDFs, spreadsheets, notes, and pictures stored in your folders.

A browser-based landlord ledger for tracking tenancies, rent, receipts and related records in English or Urdu.

A browser-based tool for converting music files or sheet music into playable tabs for a 12-hole alto C ocarina.

An independent app reads a Fisker Ocean’s battery, 12V system, trips and fault codes through a Bluetooth OBD adapter.

A Windows point-of-sale and inventory system for Iraqi pharmacies, with batch-expiry tracking, Arabic receipts and syncing across computers.

Pastemind is a free Mac clipboard-history app that says it can find copied items with natural-language searches, including images, recordings, and scanned PDFs.

A French-language archive lets visitors search Pierre Bénichou quotations and jump to the matching moment in a video.

A free, no-sign-up browser tool that turns audio or video into ringtone files for iPhone or Android.

A medicine and everyday-health product comparison tool that matches brand names with Jan Aushadhi options, compares prices, and helps locate nearby Kendras.

A browser-based simulator for practicing system design by changing architectures and measuring how they handle traffic and failures.

Situs presents an interactive modeling tool for pediatric cardiac anatomy and physiology, intended for clinical teams, learners, and families.

A native iPhone, iPad, and Mac app for script coverage, per-take records, continuity references, and production handoffs.

Swell is an iPhone and CarPlay music player for libraries stored on a personal Jellyfin server.

A free software tonewheel organ for macOS, Windows, Linux, and iPad/iPhone, presented as a real-time electromechanical simulation rather than a sample library.

A collection of free calculators for Gulf employment entitlements, VAT, rent increases, zakat, currency conversion, and Hijri dates.

A searchable directory of Texas substance-use treatment programs assembled from state lists and the federal SAMHSA directory.

Website Desktop opens a website’s pages as windows on a zoomable desktop, with a site-map view for seeing how they fit together.

A fan-made tracker estimates GTA VI’s local midnight unlock times across 62 countries.

Wipzy is a Mac disk cleaner for developers that identifies project and toolchain files, then moves selected items into a quarantine users can undo.

A browser-based tool converts photos into iron-on bead patterns, counts the colors needed, and exports printable A4 PDFs.

An iPhone, iPad, and Mac calculator for drilling formulas and well-control kill sheets, designed to solve for any missing variable.

Duotop connects a Mac to an iPhone or iPad, reshaping the display and controls to fit the device’s screen and posture.

A forthcoming phone app that says it will review a photo album on-device and turn its patterns into up to eight dry, shareable cards.

An AI scribe for Australian GPs that transcribes consultations, drafts notes, and checks proposed MBS items against the schedule in force.

A paid sheet-cutting tool for carpenters and joiners that plans board layouts, uses stored offcuts, and estimates material costs.

A browser drum machine for programming swung beats, recording vocal or beatbox takes, and exporting MIDI, WAV, stems, or grooves.

A browser-based editor for making rhythmic match-cut videos from text or photos, with paper backgrounds, sound, and export controls.

Planeo describes a browser-based planner for mapping flights with a DJI Mini 5 Pro and preparing agricultural spraying work with a DJI Agras T25P.

A Windows app that opens context-sensitive conversion, editing, and file-action wheels while you drag files in File Explorer.

A free group-trip calculator splits lodging costs by who stayed each night, room value, and how each fee is charged.

A playable chord-progression library you can browse by mood, musical style, key, and instrument.

A free tool for comparing furniture dimensions with rooms in a prospective home.

ExhaustScore uses GPS speed to make simulated engine sounds change as you drive, with settings for cars, gears, and exhaust.

An interactive visualizer lets you customize sorting animations, compare algorithms, and make videos of the results.

A Windows and macOS utility for refilling and resetting xTool O1 OMNI cartridge levels, with refill guidance and ink-cost comparisons.

A flight research tool for comparing historical on-time and cancellation rates by U.S. route, airport, airline, and flight number.

A French-language tool for suppliers to public buyers to identify late-paying buyers and calculate interest and recovery fees on overdue invoices.

RigLit is a Windows app for controlling lighting, fans, pump displays, and cooling across mixed-brand PC hardware.

ShotPack turns app screenshots and an icon into store-sized screenshots and iOS and Android icon files.

It converts bank and credit-card statement PDFs into CSV, Excel, QuickBooks, and OFX files, with no account required to try it.

A browser-based kit for packaging Tapas series into republishable files for Webtoon, GlobalComix, Substack, or a personal site.

A private shared web space for a couple to keep anniversaries, wishes, memories, diary entries, and small activities together.

A free browser-based tool for turning lists or spreadsheets into barcode and QR-code labels, with PDF, PNG, and SVG downloads.

A detailed calculator for sizing open or crossed belt drives, including flat, V-belt, and timing-belt setups.

Pilot-stage management software for Red Sea dive centres, covering bookings, diver check-in, boat plans, CDWS checks, gas fills and cash handling.

A free macOS and Windows app that queues commands or prompts and advances to the next snippet as you paste.

The tool rebuilds older AGCO CPQ machine configurations against the newest price list, carrying sales codes forward for review.

A free 3D deck planner that says it can estimate framing, boards, footings, cuts and reference costs for Australian and US rules.

Dockwell helps furniture stores import supplier packing lists, track container shipments, and manage inventory through receiving, reservation, and delivery.

A browser-based tool for turning scanned or photographed color and black-and-white film negatives into positive images.

A set of statewide and regional maps for finding public campgrounds, tent sites, group camps and boondocking areas across eight western states.

A trucking calculator estimates fuel surcharges per mile or as a percentage, using weekly EIA diesel prices by region.

A free Mac app pairs two apps, then uses Claude to draft an automation script for you to review and approve.

Enter a Spanish address to get a free quick report on a building, its surroundings, and conditions such as noise, flood risk, and sunlight.

Keepbay is a self-hosted file manager for Linux servers and NAS devices, designed for household file sharing, browsing, and search.

A French-language cheese guide for identifying varieties, exploring terroirs, finding cheesemongers, and choosing cheeses for meals.

A lunar South Pole explorer that models when a site has both solar illumination and direct-to-Earth communication.

A free, beta guild addon for WoW: Forever that connects in-game ranks and events with a guild’s Discord.

An iPhone messaging app that sends letters by bird, with delivery time shaped by the bird you choose.

A free, browser-based QR maker that shapes codes around pictures, checks whether they scan, and exports them in print and image formats.

A shallow-water mapping service for the US coast and Caribbean, with depth readings, route planning, and fishing and shoreline information.

A free browser-based shot clock lets a laptop, TV or projector display the timer while a phone controls it; it also offers a single-device mode.

A free, open-source library and video player for films and shows stored on a disk or NAS, with no server or account required.

A free Chrome extension identifies formatting and wording that can waste paper or ink, then offers edits before you print.

A browser-based tool for shaping a photo into a tattoo stencil and preparing it for printing at a chosen size.

A Japanese-language guide with tools for planning study abroad and working holidays in five English-speaking countries.

TELLSOLE describes haptic insoles paired with machine vision, intended to cue a returner with a left- or right-foot pulse before the racket meets the ball.

A free, open-source desktop dictation app that turns spoken, self-corrected phrases into cleaner text in other apps.

VibeRes is a free, open-source macOS utility for previewing and changing display resolutions, then saving multi-display setups as profiles.

An interactive map lets you search airports, airlines, or aircraft to explore nonstop routes, destinations, and recently observed flights.

A Thai-language calculator estimates withholding tax, the net amount to transfer, and the filing form and deadline for a payment.

A practical guide to bedazzling projects, with tutorials, printable patterns, and a stone-quantity calculator.

The Parish Kit offers Catholic parishes a set of office apps installed into their own Google accounts.

A browser-based viewer for intraoral scans, with controls for viewing and orienting models, exporting files, and preparing patient-viewing packages.

An owner-built Android diagnostic app for 2002–2004 Jeep Grand Cherokee WJ/WG models with the 4.7 High Output V8.

A UK-focused preparedness site with a free 72-hour kit builder, a household readiness check, practical guides, and gear suggestions.

A WhatsApp-based service for reporting lost and found pets and matching reports privately.

AnonyMax is a Mac photo-privacy tool designed to find identifying details in an image, cover selected clues, remove hidden file data, and check the shared copy.

AnTuo presents a multilingual health toolkit for ASEAN travelers, with structured symptom translation, emergency guidance, pharmacy and hospital navigation, and allergy cards.

A call archive that transcribes uploads, searches by contact, wording or intent, and lets users ask questions about individual calls.

A Mac utility that says it reads text from your screen so you can search past activity and return to the moment it appeared.

A Revit add-in that traces HVAC sound paths through a building model and calculates room-by-room NC, RC, and dBA levels.

Avtohekim sells a Wi-Fi OBD-II adapter paired with an Azerbaijani-language app for reading vehicle faults, checking used cars, and inspecting some Toyota and Lexus hybrid batteries.

A motorsport schedule app for tracking session times across major series, club racing, and one-off events.

A free directory for comparing U.S. sauce and seasoning co-packers by published minimums, packaging, processes, and other supplier details.

A web app for electricians that calculates conduit bends, from offsets and saddles to parallel runs and compound 90s.

Upload a third-party logistics invoice and rate card; BillProofs says it matches charges against the agreed rates and flags discrepancies.

A free browser-based tool for finding and hiding private details in screenshots and photos before sharing them.

A directory of U.S. land crossings from Mexico and Canada, with reported waits and status by crossing and lane.

BrewStep helps homebrewers build recipes, follow a guided brew day, and track fermentation with readings from compatible sensors.

CampAware describes a weather-alert and head-count system for summer camps, with hazard-specific rally points and messages for staff, counselors, and optionally parents.

A browser-based tool for animating CAD assemblies, building design-review presentations, and exporting videos or interactive 3D viewers.

An iPhone app for flight instructors and students that records intercom audio alongside flight data, then prepares the lesson for review and sharing.

A free, open-source application for organizing investigations with a graph, map, timeline, evidence files, and sourced relationships.

A filterable feed of daily changes to college football rosters and staff pages.

A set of free calculators for estimating CFU/mL and CFU/g, converting OD600 readings to cell-density estimates, and planning serial dilutions.

A strength-training app that plans weekly workouts, adapts exercises to available equipment, and keeps its log on your device.

A browser tool that listens for clap, snap, or whistle patterns and uses them to trigger actions, including webhooks.

A browser-based tool for removing metadata—including GPS, AI labels, and embedded prompts—from image files.

The service checks contractors or suppliers against public OSHA inspection data and emails a printable report.

A visualizer for floor-coating installers lets them preview finishes on a customer’s floor photo and collect quote requests.

A location-mapping service for showing where festival floats, mikoshi, and dance teams are in real time.

A live-production intercom monitoring product that says it transcribes conversations and alerts crews to missed cues, audio trouble, and safety calls.

CoolBox lets users design custom-fit board-game containers, dividers, trays, tokens, and other pieces for 3D printing.

A Zimbabwe-first platform for recording customary unions, preserving family materials, and linking them into a family tree.

A Korean-language directory for comparing packaged foods and franchise meals by protein per 100 calories.

A browser-based audit tool for brands selling through UNFI, KeHE, Walmart, or Amazon Vendor, flagging deductions, reasons, and deadlines.

A companion app for the five-dice, thirteen-box game that tracks scores, totals, bonuses, players, and standings while you roll physical dice.

Didja is a Mac utility that says it can track unfinished checklist steps across apps by reading on-screen text.

A live comparison of provider status reports and connection timings for ChatGPT, Claude, Gemini, and Grok.

An independent fan reference for DREADMOOR, with fish and bait finders, a schematic map, crafting and upgrade references, guides, and patch records.

A macOS clipboard manager that puts searchable clip history and coding-agent interactions in the notch.

A UK-focused K-pop album comparison tool that sorts six shops by album price plus postage, with stock and pre-order details.

A browser-based tool for designing transformers and inductors, checking designs, and generating technical documentation.

Evidentiary describes an AI interview that gathers details and screenshots from scam reporters, then organizes them for a marketplace’s Trust & Safety team.

A free fantasy-football tool that turns an opponent’s lineup into a custom curse and a shareable link and image.

A free Portuguese-language tool for customizing 3D-printable models and downloading them as STL or 3MF files.

A browser-based compressor for targeting an exact file size or a platform’s upload limit.

A directory of public M3U playlist URLs with channel counts, source checks, browsing, a browser player, and setup guides.

Coco Match turns a target color into a suggested coating blend and dye-drop recipe for treats made with candy melts, almond bark, and similar coatings.

A bilingual subscriber-management system for Lebanon’s dish and internet distributors, covering customer records, monthly billing, collections, and receipts.

A diary app for logging medication, on/off periods, falls, freezes, and symptoms to discuss with a neurologist.

Proofline describes a workflow for verifying emailed bank-account changes by calling a number already on file before a team decides whether to send money.

An independent site presenting California high school wrestling rankings, wrestler search, and team and matchup tools.