Useful Tools

Hidje is a shared app for parents to track a premature baby’s feeding, tube feeds, diapers, sleep, medication, and growth.

A bilingual Vietnamese-English web experience offers private, shared, and friends-only spaces for taking a crying break.

A searchable guide to MS trials, results, reviews, medicines and research news.

A Japanese event-travel finder that checks hotel availability near live-event venues and organizes results by performance, artist, and venue.

Visual military-uniform reference tools help people identify ribbons, unit patches, ranks, and marksmanship badges, then organize research toward a person’s story.

A free browser-based CAD app for school Design and Technology, with guided tutorials and exports for drawings, workshop plans, 3D models, and student hand-ins.

RulesWatch records rule edits on Polymarket and Kalshi, showing changed wording alongside market prices and offering alerts for watched markets.

Foldio arranges PDFs and images into printable signatures or booklets, previews the sheets, and guides home printing and assembly.

OpenSlova is a free, open-source dictionary app for constructed-language makers, with tools for documenting grammar and publishing a dictionary as a website or print edition.

A free browser-based suite for amateur radio operators, combining radio, LoRa mesh, APRS, and GPS-tracker tools.

A free directory of Singapore-focused calculators, checkers, transit tools, and games, organized around everyday tasks.

A browser-based tool for checking, fixing, and splitting 1099 CSV files for the IRS IRIS Taxpayer Portal.

An unofficial Walt Disney World tracker combining park-by-park sentiment, estimated crowd levels, live waits, and guest-timed wait reports.

A multilingual database for checking ingredients, allergens, pork, and other label details in Korean packaged foods.

An experimental browser-based tool compares a dahlia crown photo with examples of leafy gall, normal growth, and crown gall.

A browser-based tool that ranks likely typefaces from an image, using a catalog of 2,004 open-source families.

A calculator estimates what France’s proposed per-gigabyte data-delivery tax could mean for a website.

Hinowa is a browser-based day planner that lays a 24-hour schedule out as a circle, reserves sleep first, and suggests adjustments when tasks run long.

GhostYield offers a read-only cryptoasset schedule for probate working papers, with date-of-death valuations and unclaimed holdings flagged.

An open-source BMS player for Windows, macOS, and Linux that supports imported scores, skins, charts, and online rankings.

A public dashboard tracking autumn colour, stargazing conditions, mountain snow and bird seasons across Spain.

Boxen is a Windows voice race engineer for F1 25 and F1 26 that uses game telemetry for race callouts, boost coaching, and lap analysis.

A searchable, city-by-city guide to home-sale requirements and other local rules affecting homeowners.

A Montana hunting map that estimates daily elk activity while accounting for licenses, public access, terrain, weather, and walking distance.

Directory Generator creates a fictional SaaS directory, complete with made-up tools, implausible pricing tiers, and a badge.

A free Mac image viewer for photographers to review folders, rate shots, and sort out rejects before editing.

A free Mac app for folk dance organizers to arrange an evening’s dances, manage teaching stops, and show dance information on a projector.

An iPhone app that turns video clips into a Super 8-style film, but only after the roll is full.

A searchable directory of 24,284 personal and company blogs, ranked by how many different people linked them on Hacker News.

A tracker compares home humanoid robots by price, order status, delivery timing, and what makers say they can do.

An independent guide to sneaker prices, listed UK sizes, and retailer buying links for shoppers in India.

A free map that brings together public planning, hazard, evacuation and other civic-data layers to help people check a place in Chile before buying, renting or moving.

A free collection of browser apps for molecular- and cell-biology analyses, from flow cytometry to clone lookup.

A browser-based indoor cycling app for controlling a smart trainer, riding mapped climbs, and keeping ride data on your device.

A browser-based suite for building procedural textures, generating PBR maps, painting materials on 3D models, and sharing or remixing community textures.

A browser-based patient-monitor simulator for training, with one device displaying vital signs and another controlling them.

A browser-based ambient music instrument that generates endless pieces with controls for sound, duration, and a sleep timer.

A browser-based collection of calculations for horizons, celestial navigation, Earth curvature, and related geometry.

An interactive side-view simulator lets you adjust an incoming ball, racket contact, swing, and spin to compare estimated flight and court bounces.

A stock-valuation and teaching tool that uses SEC filings to show what future cash-flow growth a company’s share price appears to assume.

A tool for independent sewing-pattern designers that converts a layered master pattern into tiled home-printing, copyshop, and projector PDFs.

SkateBox reads RaceBox recordings and CSV exports to map downhill runs, splits, corner speeds, braking, slides, and run replays.

A browser-based shelf, color mixer, and colorway planner for Angelus and KixKote sneaker paints.

A free, open-source Mac and Windows app for dictation, voice actions, meeting notes, and transcripts.

A Korean-language site with interactive five-difference puzzles, free printable A4 activity sheets, and a large-screen mode for group play.

Aerial is an open-source Android TV launcher that replaces the home screen with favorite apps, customizable layouts, and scenic wallpapers and screensavers.

A macOS menu bar app uses a local model to control an RTL-SDR radio through plain-language requests.

Akwaaba describes a Claude assistant for Ghanaian community health workers, delivered through WhatsApp in Ewe, Twi and English.

A browser-based planner for lost-wax jewelry casting, from arranging a 3D model’s sprue tree to recording the casting result.

A Windows app that saves Rocket League matches, charts game stats, and links coaching notes to moments in a replay.

A DoorDash-driver calculator estimates whether an offer is worth taking using its pay, distance, time, and your vehicle costs.

A collection of Deadlock mods and configuration tools focused on performance, readability, and gameplay customization.

A browser-based tool checks damaged .docx files, explains the problems it finds, and offers a repaired copy without uploading the file.

A free macOS app displays a meadow, sea, or lunar scene in a desktop layer designed to stay out of the way.

A visualization tool for architects and designers that turns 3D models into rendered exterior and interior scenes.

A search tool for finding public-domain historical and NASA photos using natural-language descriptions, with source and rights information for each result.

Findspa lets visitors enter a starting city or use their location to browse spas, thermal baths, saunas and water parks by driving time.

A free Windows app that displays English subtitles for teammates speaking other languages in Counter-Strike 2.

A research workspace for inspecting French-fry surface blemishes, measuring them, and reviewing how each assessment was reached.

A downloadable system uses three cameras to auto-score steel-tip darts, track player stats, and run more than 20 games and variants offline.

A forecasting tool for theatre producers that turns weekly box-office data into closing-risk signals and three-month gross estimates.

Ventos presents a wearable that tracks gas and measures hydrogen, connecting those readings with food, bloating, and a microbiome study.

An interactive map for exploring Greers Ferry Lake, adding personal pins, and switching on historical, geological, and other map layers.

Hazırkal is a Turkish-language disaster-preparedness app designed to keep first-aid guidance, team plans, meeting points, and important documents available offline.

A collection of pediatric cardiology and neonatal hemodynamics calculators and references, covering cath measurements, surgical risk, screening, and imaging.

An open benchmark that tests whether NBA player-impact metrics can predict team and game results.

An interactive tool estimates whether a sign would be readable at a chosen place, date, time, and distance.

HuFu is a cross-platform Chinese input method with whole-sentence, word, and single-character modes.

Ilson is a free, open-source workspace for reading and editing PDFs and Korean HWP/HWPX documents in a browser or desktop app.

An Arabic-language library for browsing and searching Islamic books, with categories spanning religious scholarship, history, language, literature, and more.

A free, browser-based FPV drone simulator featuring real-world locations, practice lessons, races, and replay tools.

A browser-based light show responds to music files selected from your device, swirling coloured oils under virtual glass.

A motorcycle service planner pairs model-specific maintenance schedules with records of work done and upcoming tasks.

Muazn presents a shop-management system for trading-card stores, combining card pricing, scanning, sales and trade workflows, printed labels, and a customer-facing catalogue.

A searchable archive of Mufti Abu Layth’s recordings, organized with transcripts, topics, sources, and related material.

Bargad presents a free family-tree app designed for remarriages, step-families, extended kinship, and English or Hindi relationship names.

Nasłonecznienie.com offers a free way to estimate a land parcel’s sunlight across the year using its cadastral identifier or coordinates.

A Korean-led Catholic site brings together virtual church spaces, guided rosary prayer, age-based catechesis, and pilgrimage information.

A free Windows overlay for iRacing that displays race information such as nearby cars, radar, class positions, lap delta, fuel, and pedal use.

A no-login tool for tutors and small learning-support providers that turns lesson notes into reports for students’ parents.

A searchable index compares pickleball paddle claims from creator reviews and owner comments, with links to the cited sources.

A practical guide to walking stages of the Norfolk and Suffolk coast paths, with closures, ferry crossings, bus links and shorter day walks.

A Turkish guide to pellet production costs, with a calculator for estimating costs and seasonal storage needs using your own figures.

A browser-based drawing tool for knifemakers to design blades, springs, and handles, check folding-knife movement, and export shop-ready files.

The site tracks dated US price hikes across 76 subscriptions and says it also covers 318 Shopify apps and WooCommerce extensions, linking entries to evidence.

Psalmcast presents software for running church lyrics, hymns, Bible verses and media across service screens.

Quire is a forthcoming tool for UK and Ireland funeral directors to prepare orders of service, with a printable sample available now.

A browser-based tool that transcribes audio or video files you select and exports editable text or subtitle formats.

A motorcycle-parts lookup catalog uses model-specific listings and rider reports to help check whether a part fits.

A Spanish-language guide for checking camper overnight rules by municipality, with regional indexes and road-trip routes.

A route planner for road trips that prioritizes scenery and takes vehicle type, sunlight, and weather into account.

A Norwegian-language dashboard for classroom routines, with student lists, random draws, group making, a timer, and a daily plan.

A free, browser-based calendar that uses your town or frost dates to suggest when to sow, plant out, and harvest 30 vegetables and herbs.

An interactive atlas for mapping No Man’s Sky systems, logging discoveries, and importing explored locations from game saves.

Free, open-source replacement firmware adds scale-based playing, sequencing, and extensive MIDI controls to the TheoryBoard THY333.

A ZIP-code lookup shows which contaminants have turned up in private wells in your county and suggests what to test for.

A searchable Western North Carolina directory compares posted prices for TMJ and jaw care and offers guides to finding care.

A shellfish-hatchery tool that turns oyster-larvae microscope photos into counts, classifications, tank-risk flags, and suggested responses.

A searchable, open library of tree allometric equations for biomass, height, and root:shoot ratios.

A browser-based FPV drone simulator with Mysore locations, radio or gamepad controls, and options to import quad rates.

A Mac app that compresses videos in an Apple Photos library and returns copies with their album placement and metadata preserved.

A Palestinian road app for checking West Bank conditions, finding routes around closures, and asking a voice assistant questions in local dialect.

A free calculator and reference site for comparing cat-food nutrition on a dry-matter basis.

A phone-based aircraft-spotting demo uses ADS-B data and the phone’s sensors to label known aircraft in the sky, with sightings exportable as JSON or CSV.

A Korean-language tool for comparing apartment common-area maintenance costs with similar buildings and other Seoul districts.

A free tool for creating Data Matrix codes as PNG, SVG or true-size PDFs, with separate workflows for batches, GS1 data and labels.

A Korean platform for small academies combines worksheet-to-quiz creation, student attendance tracking, classroom activities, and parent reports.

An open-source agent that reviews policy documents for conflicts, repeated clauses, and changes that affect other rules.

ShelfSure sends U.S. thrift, consignment, and resale shops a weekly email listing government recalls related to the kinds of goods and brands they sell.

A macOS utility that shows when the computer is working hard, points to the app responsible, and nudges you to take a break.

A Ukrainian production tool for building shoot-day schedules, shot plans, and actor call times.

Tally offers free scorekeeping apps for seven related card games, with game-specific rules and scoring.

A location-based tool that estimates which wildfire may have sent smoke to you.

A Russian-language diagnostic service interprets Yamaha motorcycle ECU logs to check mileage and riding history, with sample reports for used-bike inspections.

A Mac menu-bar app that turns speech into text in the app you’re using, with an offline local engine and an optional cloud route.

A forthcoming phone app for organizing personal legal, VA, school, and workplace papers into folders and sharing them as PDFs.

Ride Height Chart lets families filter ride requirements at 20 US theme parks by a child’s height.

Trackhop syncs playlists across streaming services and personal music servers, with scheduling and file export options.

A browser configurator lets users set furniture dimensions, inspect plan, elevation and 3D views, then download DXF and IFC4 files.

A collection of Mac apps, browser extensions, and free web tools for file conversion, screenshots, and fixing older Vietnamese text encodings.

A free trip planner that counts Schengen days, estimates when a stay must end, and checks proposed travel dates against the rolling 90/180-day limit.

Auralis transcribes spoken Arabic with word-level timestamps and confidence markers, with exports for subtitles and other tools.

Bokumi is an iPhone and iPad manga reader with right-to-left page turns, webtoon scrolling, and a customizable reading experience.

An audit-workpaper tool that takes a client folder of spreadsheets, PDFs, and documents and drafts a report with figures linked to their sources.

A free, in-browser toolkit for DJs and producers, with tools for tempo, pitch, keys, 808 tuning, and turning a hummed bassline into MIDI.

Dr. Harish Kumar’s site presents six interactive worksheets for auditing Indian health-insurance claims, using synthetic cases and cited rules.

Control pairs a Mac app with an iPhone, iPad, another Mac, or Apple Vision Pro to view and interact with the Mac remotely.

A proposed WhatsApp workflow for Moroccan artisans to turn Darija or French voice notes, messages, or photos into checked, branded PDF quotes using their own prices.

A German- and English-language emergency medicine app for clinicians, with weight-based dosing, resuscitation algorithms, pediatric tables, and calculators.

electronic-invoice.app lets businesses check and create German e-invoices in a browser, with an API for software integrations.

A browser-based camera report for crews shooting 16mm, 35mm, and other analog formats, with a free mag-card tool and production-planning features in beta.

Vyzo pairs an iPhone or iPad with a Mac so you can work in Mac apps from your mobile screen.

A collection of 13 VST3 audio plugins for 64-bit Windows, presented as a Russian artisan workshop.

Healthspan Commons presents a browser-based reference model and open specification for estimating biological age from wearable and routine clinical data.

A Japanese-language hub of calculators and explainers for home area, housing costs, taxes, renting, and DIY materials.

A hands-free food-logging project that describes using Ray-Ban Meta glasses to read food and weight from a kitchen scale, then record the entry with nutrition estimates.

A WhatsApp-based assistant for building-trade artisans that turns voice notes into quote and invoice PDFs.

A Danish race-timing tool for school runs, village races and other group events, using QR bibs, phones, a projector and printable diplomas.

A browser-based toolkit for inspecting, removing, editing, and converting metadata in photos, video, audio, and PDFs.

An open-source desktop app and command-line tool that aligns focus-stack images and fuses them into a single, all-in-focus result.

A browser-based editor that removes silences and filler words from video or audio, with exports for video, subtitles, or editing timelines.

Plainsong sells ten small browser-based planners for ADHD and AuDHD life admin, with one-time prices and a local-first pitch.

Paste a Pokémon Showdown team export to see its threats, tournament matchups, recommended four-Pokémon selections, and leads.

PS Workspace presents a local-first Windows office suite for editing DOCX, XLSX, PPTX, PDF, Markdown, and HTML files.

Roifile offers a no-account check of DORA register packages, with plain-language feedback and paid filing and rejection-rescue services.

An Arabic-language tool for tracing relationships and building family, workplace, and friends-group trees.

A New York land-research site combining property opportunities, public sales, parcel maps, and land-rights evidence.

An interactive quiz compares the sizes of animals, landmarks, planets, and everyday objects.

Dealer-built software for coin and bullion shops, tracking inventory and orders across live shows, eBay, a counter, and an online store.

A free, no-signup checker compares how a recurring call lands across time-zone changes and helps prepare a request to keep one person’s local hour fixed.

Agoo POS is a point-of-sale concept for Ghanaian businesses, with workflows for MoMo payments, measured goods, credit books, and selling through power cuts.

A free browser-based simulator for designing and programming two-wheel robots, with wiring diagrams, parts lists, and firmware for real builds.

This Japanese-language site offers an HVAC replacement savings simulator and describes a service that uses building electricity data to set a savings guarantee.

A searchable 2026–2027 airshow calendar pairs event and display-team listings with location filters and trip-planning pages.

A Lucknow-based service arranges Hindi, Hinglish and local-language testing of websites, apps and AI bots with users in Tier-2 and Tier-3 India.

A Spanish-language app for logging shots, timing practice, measuring dry-fire drills, and organizing competitions across 11 shooting disciplines.

An email-native manufacturing ledger that tracks supplier requests, promises, and documents against drawing revisions, then drafts follow-ups for approval.

Windows software for ball-by-ball cricket scoring, live-stream graphics, OBS control, and live scores for schools, clubs, and media teams.

A browser-based BaZi calculator that turns birth details into a Four Pillars chart, with references and related tools alongside it.

A browser-based 3-D solver for single beam members, covering stress, torsion, buckling, vibration, plastic collapse, and fatigue.

Upload a checkout screenshot to estimate how many pesos are at risk if an item’s size is wrong and the store won’t take it back.

BinHaulPro is software for bin-rental and waste-hauling companies, covering orders, dispatch, driver stops, bin tracking, and billing.

Brower connects Claude, Mistral, or Grok to a route-planning service that returns mapped running, trail, and hiking routes with elevation, surface details, closures, and GPX files.

A three-cushion billiards training site pairs a browser-based diamond-system calculator with a forthcoming mobile app for solving positions, learning systems, and playing bots.

An Italian quoting tool for machine shops that reads a customer request and drawing, then prepares a draft using the shop’s costs.

Clinics enter their website address to get three weekly social media post drafts based on services listed there, with photo suggestions and a stated advertising-rules check.

ChartWidgets presents live U.S. economic indicators with plain-English explanations and free embed options.

A pharmacy tool that checks a customer’s intended OTC purchase against their medications, conditions, habits, plants, and supplements using CIMA data.

Counting Master offers a free browser counter and describes a forthcoming iPhone app that counts objects in photos, learns from corrections, and works offline.

A free collection of countdowns, bingo cards, gift draws, party grids, and other shareable tools for seasonal events.

A free browser-based workspace for turning a photo into a cross-stitch chart, with thread choices, fabric sizing, and printable exports.

A salon operations platform for studios combining lash, semi-permanent makeup, and waxing services.

A browser editor for importing dental scan meshes, cleaning and shaping them, and exporting an STL.

A free, no-signup scanner for web agencies to check up to 50 client domains for SSL, root/www, and registration problems.

dieselmaat.shop calculates customer fuel surcharges from published diesel prices and prepares a letter explaining each change.

This open-source home-office status system uses signals like microphone activity, calendar events and screen lock to set a red, yellow or green status.

A Mac app for creating, sharing, and using small .pop apps together, with an iPhone build listed through TestFlight.

A LINE-based operations tool for construction teams that organizes job documents and tracks receipts, labor, schedules, and project budgets.

EcoRight describes a free photo-based tool that helps people sort household waste in Singapore and explains what to do with each item.

ETFsonar presents free browser tools for ETF fees and index composition, alongside a forthcoming iPhone app for examining portfolio holdings, overlaps, and costs.

A rural-land screening tool that checks public records and satellite imagery, then produces a risk score and PDF report.

Ferry is an iPhone app for transferring photos from Nikon Z cameras over Wi-Fi or USB-C, with RAW, HEIF, and JPEG support described on the page.

A browser-based tool for inspecting and removing supported metadata from documents and images, with a before-and-after comparison.

Free fishing forecasts for 310 U.S. spots combine tides, weather, bite windows, and Washington trout-stocking reports.

A searchable directory of fish fries across Wisconsin, Minnesota, Michigan, Illinois, and Iowa, with filters for venue type and Lent listings.

A guitar practice tool that measures notes and timing against a click, then uses practice results to build a daily plan.

Quivermark presents a website-monitoring service that tests customer-facing links, forms, QR codes, checkout and listings, then sends plain-language alerts.

A browser-based studio lets you customize one of eight planter designs, then order a printed version or download print-ready files.

A French-language service for audiovisual-equipment rental businesses to check people and equipment against shared fraud and theft reports.

A floating macOS notes app that opens with a keyboard shortcut, so you can capture a thought without leaving what you’re doing.

PlacerPro ranks creek stretches for hobby gold prospectors using historic workings, USGS sediment samples, geology, and land-status overlays.

Haul presents a Windows download manager that splits files across connections, adjusts to server limits, manages bandwidth, and checks files before they land.

Hello Narra describes a personal assistant for blind and low-vision users that reads documents aloud at a chosen pace and tone, and answers questions about them.

A late-night journey planner for London and the South East that compares routes home and helps you choose when to leave.

A cake-piping practice site offers printable drills and says it can score a photo of your work with a heat map and corrective replay.

This trial calculator helps people in Japan estimate income limits related to family tax deductions, health insurance, and support programs.

A free, browser-based set of calculators for sheet-metal layouts, profile cutting, DXF nesting, material weight and cost, gears, and fasteners.

A browser-based checker for comparing device models, OS or firmware versions, and software against public vulnerability records.

A Peruvian studio presents two Revit plugins: Rumi for building and repeating model details, and Quipu for turning a model into quantities, schedules, and budgets.

A smartwatch app that tracks juggling runs and sends session statistics to a phone.

An installable, offline build guide for K-bike café-racer projects, with sourced torque values, wiring diagrams, fault-finding flows, and a companion PDF.

A kosher grocery price-comparison tool for shoppers choosing among stores and areas.