Useful Tools

A source-linked comparison of power wheelchair weight, range, battery flight limits and FDA records.

A wedding website for Muslim couples, with household-specific WhatsApp RSVP links and replies organized by event.

A keyboard-focused Gmail client for Mac, with an iPhone companion that connects through the Mac.

An evidence-graded register and interactive map of tokenised assets, settlement systems, institutions, and related events.

A searchable reference library for oral pouches, spanning products, ingredients, research, markets, and supplier details.

An interactive US airport and route dashboard combines hourly TSA checkpoint counts with flight on-time records, with lookup by airport, city, or route.

A free calendar and weekly email track camp and school-vacation registration dates across nine communities north of Boston.

A Chinese metaphysics reference site combining articles, comparison tables, classical texts, and tools for calendrics, divination, and related traditions.

A collection of guitar pedal plug-ins for VST3 on Windows, each built around a named scientist and a mathematical model.

Daily New Domains tracks newly registered .ai, .io, .so, .security and .si domains with working websites, alongside technical and business signals.

Flexgy is software for electric distributors that evaluates each flexible grid-access limit, choosing whether to act, limit capacity, or abstain—and recording the decision.

A weather project that says it downscales ECMWF forecasts over 50 crowd-selected locations and returns maps, data, and storm-track visualizations.

An interactive genealogy of the kings of France and related European houses, with timelines, guided stories, animated films, and quizzes.

A free Windows tool for planning World of Warcraft boss encounters, sending raiders in-game reminders, and reviewing pulls against combat logs.

A searchable map and state-by-state guide to ghost towns and vanished settlements across the United States.

A free browser-based studio for writing Indian classical and Gurmat Sangeet compositions in sargam and playing them with tabla accompaniment.

A free woodworking reference pairs calculators with sourced information on wood, finishes, joinery, lumber, tools, fasteners, and carpentry.

A visit-frequency calculator estimates how many more times you might see a parent and prompts you to schedule the next visit.

4D VR is an interactive browser and VR playground for higher-dimensional shapes, spaces, and physics.

Ahead presents an Android beta for planning and briefing VFR cross-country flights, with in-flight prompts for pilots.

This fan project runs Halo: Combat Evolved from a Steam MCC installation, adding modded-game browsing, LAN play, bots, and split-screen.

AssetBrief looks up Solana token mints and presents a passport of the issuer, holder claim, redemption terms, and trading modes.

A bilingual browser tool that turns eBird sightings into personal maps, lifer records, calendars, charts and shareable cards.

A browsable view of NOAA buoy and coastal-station observations for wind, waves, and water temperature.

A timed joke companion for cement mixing, with controls for starting, pausing, adding another mix, and managing the banter.

A browser-based workbench for building lighting effects, Execute layouts, and DMX patch plans from MagicQ show files.

Club Ladder combines chess club members’ Lichess and chess.com ratings into standings, rating histories, and printable parent reports.

A Windows utility for GTA World Hungary’s LSSD roleplayers, combining radio and siren sounds, bodycam recording, legal references, a penalty calculator, and an in-game department computer.

An interactive index compares price histories for 44 Australian staples with official CPI from 2000 onward.

Counterslip describes a trade-in workflow where card shops and TCG sellers set rates, collectors submit card lists, and staff retrieve each offer with a code.

A dated tracker of platform shutdowns, API sunsets, and fee changes, with free RSS, calendar, JSON, and CSV feeds.

DeskGuard uses a Mac’s camera to notice when a hand lingers near user-selected areas and provide a prompt.

Self-hosted management software for volunteer-run venues, covering the bar till, shift rota, event tickets, and public site.

A public tracker for Bangladesh Railway trains, with live-map views, schedules, route planning, and station information.

A free, no-sign-up calculator compares repairing a household appliance with replacing it using costs and lifespan estimates you can change.

A browser-based crew game that splits a warehouse-club list into shopper-sized stripes, then races everyone to checkout on a live timing tower.

FotoElek is a Windows photo organizer that says it sorts scattered photo collections on your computer and lets you search them with a sentence.

A collection of browser-based calculators and generators for fiber-optic and internet-provider network work.

An Arabic suite of civil-engineering calculators for Saudi practice, spanning seven disciplines and offering browser-based checks with printable reports.

A free calculator for Hebrew gematria, with multiple calculation methods, letter-by-letter breakdowns, related word lookups, and tools for Hebrew dates.

A browser-based converter that turns one image into a still or motion GIF, or a stack of images into an animation.

A beta forecast tool for kitesurfers, combining wind, tide, swell, rain and spot guidance across Caribbean locations.

A sheet-music reader and player for iPhone, iPad, and Mac, with playback-following scores, practice controls, editing, and accompaniment.

A browser-based block programming tool for LEGO SPIKE Prime hubs running Pybricks firmware.

Minbar Translate describes a live translation service for mosque sermons, with text intended for mosque screens and worshippers’ phones.

A browser-based symptom scout for cassava and maize that ranks likely crop problems and gives growers next checks and actions.

Nozzlefox presents browser-based tools to view, convert, repair, split, resize, and create 3D-print files.

An interactive reading guide turns book discovery into a stroll through 13 storybook shops, with book recommendations, a matching café order, and a timed reading nook.

An open-source desktop server browser for finding multiplayer servers across 70 classic games.

A disease-by-disease drug-development tracker that organizes programs, stages, and milestones, with source links and an AI-agent connector.

An interactive design toy for exploring presidential Oval Offices, comparing rooms, and creating a personalized version to save or share.

A lookup for home-building fees, water and sewer capacity, and nearby site-work prices, sourced to public documents.

A piano-practice tool that compares a performance on a MIDI keyboard with a score, then suggests what to practise next.

A free Palworld toolkit for checking breeding combinations, finding parents, planning routes, and exploring passive skills.

A free pixel-art QR code generator that fills scannable codes with little people, plants and animals.

A daily laser-routing puzzle where you place and rotate pieces to send colored beams to their matching targets.

Razum is a maintenance-tracking tool for contract maintainers and small aircraft shops, organizing due items, records, and maintenance-review preparation.

A personal study tool for searching Narcotics Anonymous literature and tracing passages to publication and page references.

A browser-based tool for finding and blacking out names across a folder of PDFs, Word documents, and images.

An Android launcher stores its home-screen layout in `launcher.json`, which can be edited on the phone or on a computer.

A free browser tool that removes marks from completed worksheet photos or PDFs and exports a clean, printable copy.

Scoopable recalculates gelato, ice cream, sorbet, and Ninja Creami recipes as you change ingredient amounts.

A Windows and Mac tool for coordinating live-event countdowns, running orders, presenter messages, and on-stage displays.

A browser-based compressor that lets you set a target size for videos or images, then download a file designed to fit.

An Android communication app lets people who cannot speak build messages from picture symbols and have them spoken aloud.

A free Windows app that processes solar captures into aligned, graded timelapses, stills, and mosaics.

A browsable catalog of YouTube talks, lectures, and documentaries that Hacker News commenters have recommended.

A compact amber LED board—or free browser demo—shows National Rail departures, platforms, delays and calling points for a chosen station.

The Whole F’n Show turns wrestling attendance records into a downloadable workbook of shows, wrestlers, matches, ratings, charts, and maps.

A collection of free calculators for common lab work, from solution prep and PCR mixes to plate layouts and dose–response analysis.

World Gazette Index catalogs official gazettes by country, with details on publishers, languages, archives, legal status, and costs.

Yonder presents an Android messenger designed to send messages, photos, and voice notes without internet, relaying them between nearby phones over Bluetooth and Wi-Fi Direct.

A maintenance-reporting and invoicing tool for development firms that organizes recorded work into customer-facing ledgers and invoices.

A player-run toolkit for recording server-specific game-item prices, tracking inventory, and estimating fees and resale profit.

A desktop editor for sublimated uniforms that takes names, numbers, and sizes from a team list and prepares files for printing.

A searchable map and directory connecting food shops and stalls featured in Chinese documentaries with their cities and shows.

An interactive generator makes plotter-ready designs, with controls for seeds, parameters, paper, pens, and layout.

A browser-based tool for turning drawn, scanned, or traced handwriting into a downloadable TrueType font.

A browser for exploring archived websites, using a curated list and the Internet Archive’s Wayback Machine to serve up old pages at random.

Probatly presents probate triage, deadline calculations and links to official forms for people settling an estate.

A $5.99 Apple Watch game for babies and toddlers, built around tap-and-chase animals with sounds from A to Z.

A free, open-source tool that lets supported AI assistants search and summarize WhatsApp chats on your computer.

An interactive 2D workspace for exploring stereotactic atlas constructions from the original CASA Classic.

A French guide for looking up food labels, comparing what they require, and checking who controls them.

Drained Earth presents a 3D globe for exploring the seafloor as exposed terrain, alongside guided geography stories and linked locations.

A browser-based audio editor applies tempo, pitch, reverb, EQ, and other effects to audio or video files, then exports MP3 or WAV.

Free tools for radio listeners to check predicted station coverage, report receptions, and browse QSLs and listening data.

A reporting tool for small Singapore charities that turns selected spreadsheets, email, files, and sign-up sheets into funder-ready numbers.

A searchable catalog of decompilations, reimplementations, and unofficial ports, rated for how ready they are to play on modern systems.

A browser-based 2D tool for designing wire harnesses and producing formboard drawings, connector tables, wire lists, and bills of materials.

A browser-based tool for drawing a phone’s pattern lock, labeling the phone, and downloading the numbered pattern as an image.

An iPhone and iPad app for optimizing plywood and lumber cuts, calculating in feet and fractions, and handling other workshop measurements.

A Turkish, local-first writing app for short sessions, prompts, routines, and notes the page says stay on your device.

An open guide to checking photo and video evidence, with a library of methods, sources, and entry points for image checks and community submissions.

Loft tracks kitesurfing sessions on Apple Watch, then presents jumps, GPS tracks and session details on iPhone.

MeshClock overlays 900 MHz tropospheric ducting forecasts with MeshCore node activity, DX receptions and recent links.

An iPhone and iPad reader that speaks EPUBs, PDFs, and plain text aloud, with playback starting from a tapped sentence and words highlighted as they’re read.

A browser-based editor for building characters and scenes, animating them, adding effects, and exporting projects to common 3D and game-development formats.

An iPhone and Apple Watch contraction timer designed to keep a birth partner and approved family members updated during labour.

A free Mac app turns Apple’s Terminal commands for switching off the illuminated MacBook Pro logo into menu-bar, Control Center, keyboard, and Focus controls.

A no-signup scanner reads a website’s public pages and displays a report of observable signals related to AI use.

A catalog of audio plugins turns mixing and sound design into a playful, food-themed control surface.

A browser-based studio for building, previewing, and exporting Tesla light shows synced to music.

A Mac desktop app checks client names against Switzerland’s SECO sanctions list each day and produces PDF evidence of each run.

An iPhone and iPad app that reads English text aloud while highlighting each word and showing its IPA pronunciation in British or American English.

A free Windows app that converts satellite images and Earth data maps into music, with an audio preview and WAV export.

An iPhone home-workout app pairs short guided sessions with animated stick-figure demonstrations and a plan that adapts to your feedback.

A home-canning and kitchen-storage reference with ingredient lookups, thawing guidance, and gram and canning-math calculators.

A browser-based tool turns addresses, coordinates, or imported lists into map images for reports, proposals, and presentations.

A native macOS app for tracking usage across seven AI providers, with local history, alerts, and exports.

A truck-specific reference for fluid capacities, torque specs, service intervals, fault codes, repair procedures, and wiring diagrams.

A canvassing app for contractors that maps properties, owner details, new homeowners, and door-knocking activity.

A forthcoming journal app for iPhone, iPad, and Mac that says it keeps entries and original-quality media in the user’s iCloud.

WayPebble offers free, no-sign-up makers for visual schedules, first–then boards, choice and communication boards, and other picture-based supports.

A free browser-based calculator for steady-state liquid and gas flow through pipe networks, including loops.

A tournament clock and volunteer tracking tool built for charity poker nights.

A free city-based tool estimates what size air conditioner a home needs using local climate data, and compares the result with a square-foot rule of thumb.

An iPhone and iPad app that helps people in Australia aim a TV antenna at a transmitter, including when they’re out of mobile range.

Gallah by AI Ledger lets shopkeepers in Pakistan record sales, purchases, expenses and udhaar through WhatsApp voice notes or text.

An interactive checklist for tracking episodes across ten long-running anime, with labels that help viewers follow the main story.

An open catalog for documenting cultural-heritage artworks through samples and microscopic stratigraphic layers.

An iPhone, iPad, and Mac app for asking spoken or typed questions about audiobooks and podcasts while listening.

An Arabic-language browser tool that says it can generate, simulate, and export PLC ladder programs for several industrial platforms.

A browser-based tool for resizing, cropping, converting, compressing, watermarking, and adjusting batches of images.

BAXY is a Windows desktop assistant that takes voice or text requests, performs tasks across apps and system settings, then tells you what it did.

A free Android beta turns outdoor bird photos into identified birds, quick catching-game encounters, and collectible cards.

A Spanish-language lookup for comparing medicine prices across pharmacy chains and Mexican states.

A self-hosted project for controlling Airzone installations through a local server, with a web interface and Android and iOS apps listed as coming soon.

BreweryTV presents software for managing brewery tap lists across TV displays, a web menu, QR codes, and print-ready menus.

A $16 one-time kit that presents a way to make short vertical videos from Claude Code, Codex, or Cursor on your own computer.

A free Windows app places resource markers over Genshin Impact’s world map and minimap, with a way to track which locations you have collected.

A chanter and software engineer’s home for an ison-and-book-reading app, a planned Byzantine-notation editor, and related work.

A browser-based converter that previews CAD and 3D models, then exports them to other formats without uploading the files, according to the site.

A classroom noise monitor where animals emerge during quiet stretches and hide when noise keeps going.

An independent research project exploring whether climate funds and other institutions mobilize more private capital than comparable interventions would be expected to.

An Android app that scans printed sheet music and lets players hear, edit, transpose, and export it.

A Windows app that reads Call of Duty: Modern Warfare 4 gameplay and updates a player’s camo progress while they play.

A walk planner pairing routes with nearby coffee, toilets and baby-change facilities, with suitability scores for buggies, wheelchairs and tired legs.

A free calculator estimates concrete yards and bag counts, plus quantities of stone, gravel, and sand for a project.

COS Electricians lists state-registered electrical contractors with addresses in El Paso and Teller counties, alongside practical guides for homeowners.

A Mac beta for open-format DJs that suggests tracks from their own Serato or rekordbox library based on what’s playing and when each track was last played.

A Windows desktop aquarium with wallpaper, window, fullscreen, and floating-tank modes, plus simulated fish interactions.

A map-based tool for checking what local land-use rules may allow on a plot in Viseu and nearby municipalities.

A free iPhone and iPad darts app, presented as coming soon, that uses a camera to score home-board games and play online.

DartsEye says it uses an iPhone camera to score darts automatically, with games, online play, and match statistics.

A Lorcana collection tool for tracking cards, comparing tradeable extras, lending, wish lists, and printing proxy cards.

Derman helps people in Turkey find nearby on-duty pharmacies, with driving distance, directions, and a call option.

Divine Machinery presents a stereo rain instrument and sound-design tool for music and film, alongside several other planned sound-making projects.

A free browser-based viewer for USB endoscopes that use the UseePlus protocol, with live video and local photo and clip capture.

EV Delay combines registration data and buyer-reported delivery delays for the Volvo EX60, BMW iX3 and Mercedes-Benz GLC EV.

An interactive map catalogues airfields around the world, with aircraft tracking and details such as runways, radio frequencies, weather, and satellite views.

Family TV is a TV box for older adults who find remotes difficult: relatives can send YouTube videos from their phones, and the TV is meant to start on a familiar channel.

A Mexico-focused comparison tool for observed medicine prices, organized by active ingredient and exact product presentation.

A proposed cellular Zigbee service for checking remote-property temperatures, power, and outlets from an iPhone or Apple Watch.

Search Facebook’s /fb-answers/ pages by keyword, topic, or brand, with Google US rankings and estimated traffic.

A DM-based tool that turns Instagram or Facebook posts you share into notes, skill files, or webhook calls for AI agents.

A macOS utility that corrects selected text in place and groups recurring errors into lessons.

An interactive map of more than 1,500 German restaurants and snack bars featured in food-YouTuber videos, browsable by city, creator, or video.

A browser-based editor lets FIRST Tech Challenge teams write and compile Java OpModes, configure simulated motors and servos, and export code for OnBot Java.

A browser-playable wind-and-chime instrument, also available as a free 64-bit Windows VST3.

Garita maps buses using GPS and shows which lines are approaching a selected stop, with estimated arrival times and intercity schedule information.

A comparison tool ranks domain prices across extensions and registrars by first-year, renewal, and three-year cost.

FCP is a self-hosted message bus intended to let family members’ AI assistants share updates and coordinate tasks.

A macOS and Windows AU/VST3 plug-in for indexing, sorting, searching, editing, and generating from MIDI and sample libraries inside a DAW.

Posie is a phone-browser camera tool that overlays a pose from a saved photo and captures when you match it.

A Windows plugin that imports Rhino .3dm files into 3ds Max without an export step.

Gifted crops, resizes, compresses, and checks a photo for the US visa application’s digital photo requirements.

A US price-comparison site covering 200 standardized electronics models, ranked by delivered total price.

A free set of browser-based tools for converting, merging, splitting, repairing, and previewing FIT, GPX, and TCX files.

A project calculator that estimates gravel volume, weight, and bag count from an area and its depth.

A public tracker for Greek ferry sailing bans, recent disruptions, and departures from ports around the Aegean.

A forthcoming iPhone app for turning paper and digital tickets into a searchable keepsake archive.

A phone-based apiary log that records hive visits offline and uses those entries to update treatment records, supplies, and printable registers.

A browser-based HAR viewer that turns exported network traffic into a filterable request waterfall, with errors, timings, and file-cleaning tools.

A beta reference for Hattrick managers, organizing community research on the game’s rules, tactics, training, and club development.

A directory of podcasts recommended in Hacker News comments, ranked by mentions and grouped by genre.

A planned grocery-ordering service connecting Indianapolis shoppers with Indian, Latin American, African, and Middle Eastern grocers for pickup or delivery.

A water-filtration research site with a system builder that matches filters to water concerns and checks compatibility across the proposed setup.

A Japanese-language catalog for comparing headphones and earphones by shared criteria, owner reviews, ratings, and price.

IceSee offers lake-by-lake forecasts for ice thickness, load capacity and snow, with coverage listed for 11,662 lakes across Europe.

A data-cleaning and analysis service for small shops, built around sales and inventory spreadsheets.

A monitoring service for MSSPs that tracks whether Wazuh client pipelines are still delivering events.

Ingle is an open-source, self-hosted family chores board designed for a wall-mounted tablet, with points, pocket money, and shared chores.

A Finnish lake guide reports water temperatures, ice conditions, blue-green algae risk, and forecasts for 15,019 lakes.

A quoting tool for renovation trades that says it reads room measurements from plans, applies each artisan’s own rates, and prepares a quote for online acceptance.

A kandi-making app and community that turns photos, emojis, words, or starter designs into pony-bead patterns and build instructions.

Kite is a browser extension for Chrome and Brave that recreates selected Arc workflows, including link previews, persistent tab folders, spaces, and an Arc setup import.

A Mac app that builds a small video site in your Cloudflare account, with tools to encode, upload, and share videos.

A Spanish-language personal-finance site combining interactive salary, inflation, and mortgage calculators with sourced data and explainers.

A regional fishing dashboard combining lake levels, fullness, fishing forecasts, and solunar times for 150 Texas and Oklahoma lakes.

A set of lawn calculators and guides estimates fertilizer, seed, sod, lime, and frost dates, with formulas and sources identified.

A rotation calendar for offshore, rig and FIFO workers, with a family mode for sharing the countdown and keeping home plans in view.

Buying guides and small reference tools explain measurements, materials, and product-label language across categories from jewelry to home goods.

A browser-based suite of fabrication calculators, led by a tool that estimates 3D-print costs from Bambu Lab .3MF and .GCODE files.

A downloadable, room-by-room handbook for clearing a parent’s home—or your own—with checklists, item lists and printable cards.

A browser-based tool for auditing campaign URLs against naming rules, reviewing suggested fixes, and exporting a CSV.

A group-riding app for talking over an internet radio channel while using music apps and a helmet intercom.

A browser-based tool that converts songs, recordings, links, and music files into notes you can follow and practise on a piano keyboard.

This free checker compares two electric bills and estimates how much of the change came from price, weather, or other factors.

A free online japa counter pairs a 108-bead digital mala with mantra-specific counters and tools for planning or accompanying a practice.

A free lookup shows radar-estimated hail near any U.S. address, alongside nearby storm reports and a longer local history.

A voice-first bookkeeping app for small sellers that presents a way to record sales, expenses, and debts in French, English, or camfranglais.