Useful Tools

A searchable tracker of Prague new-build flats that records prices and availability from developers’ public price lists.

A phone-friendly HVAC app combines charge and airflow calculations, troubleshooting references, and a technician-style assistant that works offline.

A desktop app that animates maps alongside history podcast narration, with people and events appearing as the story unfolds.

A browser-based room for using Atari, Apple II, and Commodore computers to play, learn BASIC, and save your place.

Renalday presents a food and fluid diary for kidney disease, with nutrient values tied to country-specific food tables.

Tegabezu builds bilingual Amharic-and-English wedding invitations with individual guest links and QR-based door check-in.

A daily cross-field research digest selecting papers from arXiv, bioRxiv, medRxiv, and 58 journals, with summaries and links to the originals.

An MIT-licensed spectral path tracer and faceting-design CAD for cut gemstones, with a browser version and a desktop app.

Pendling is a desktop break-and-focus companion and a website widget for playful coupons, forms, polls, and giveaways.

A browser-based DFIR tool decodes legacy RDP bitmap-cache files and lets investigators browse tiles, assemble collages, and reconstruct screens.

A desktop and mobile PDF tool that finds sensitive information, removes it from documents, and checks the result before releasing the file.

A searchable database connecting sanctioned vessels and organisations with commodity traders, owners and officers.

A free tool compares estimated electricity, water, cooking-gas and fuel costs by Brazilian postal code, city or neighborhood.

A browser-based CRM for tradespeople that turns spoken job updates into changes to leads, estimates, appointments, and tasks.

A browser-based forensic parser reads macOS knowledgeC.db files and Biome streams, then presents app, screen, lock, and web-usage activity.

A Turkish-language tool that reads quantities from Revit models and produces an Excel estimate priced against the Ministry of Environment, Urbanization and Climate Change’s unit-price list.

A Japanese-language calculator tests how interest-rate increases and vacancies affect the first-year cash flow of a financed apartment building.

A strategy-game atlas of Beyond All Reason build orders, grouped by battlefield role and drawn from high-skill matches.

A weekly bid-screening service that sends firms matched government solicitations with a bid, ask-first, or skip verdict—and the cited sentence behind it.

This free Chrome extension presents synchronized chords and lyrics for YouTube videos, with controls for instrument, key, tempo, and song sections.

A browser-based tool that turns a photo into a depth map and a short depth-wipe animation.

A Mac lyrics app that syncs timed lyrics across nearby Apple devices while following music from supported players.

DoughTally presents an invoice-to-margin tool for small food businesses, connecting supplier costs to ingredients, recipes, and menu-item margins.

A free, browser-based workbench for building, validating, comparing, and understanding Path of Exile 1 and 2 loot filters.

A drone-planning tool for UK pilots that brings together airspace restrictions, NOTAMs, local hazards, flying conditions, and waypoint exports.

A home-equipment record for organizing appliances, manuals, warranties, upkeep, repairs, and recall checks.

A karting analysis tool that turns MyChron session files into specific suggestions about braking, acceleration, and time lost around the track.

A searchable U.S. tariff schedule showing rates, footnotes, units, and the Chapter 99 headings cited by each line, with optional revision alerts.

A browser-based tool for assembling a funeral program or order of service, then downloading PDFs arranged for double-sided printing.

A Korean personal site collecting free browser-based calculators, public-statistics tools, and games about getting through work.

An interactive reference calculator compares retrograde femoral nail and instrument dimensions with the intercondylar notch width of a knee replacement.

A browser tool that turns a URL or RSS feed into a ROM styled for handheld and console systems.

A free, browser-based sailing simulator for practicing starts, wind shifts, racing rules, and club regattas.

Spiralday is a free macOS planner with 10-minute daily time blocks, weekly pages, progress tracking, and printable layouts.

A German- and English-language guide to the night sky, with a location-based sky view, constellation references, and a planner for tonight.

Katto is a pixel cat for Windows and macOS that combines playful desktop animations with to-dos, reminders, focus tools, and file helpers.

A tool for building both sides of a Pokémon card trade, comparing reference values, getting an AI second opinion, and sharing the proposal.

A set of browser-based engineering tools for metal-cutting parameters, TRIZ trade-offs, risk analysis, and testable requirements.

Berea is a desktop Bible study app for exploring Scripture, keeping annotations attached to the words, and presenting passages live.

Breez is a web reader that displays text one word at a time, at a pace the reader controls.

A carrier lookup and email alert service that tracks FMCSA records for insurance, authority, out-of-service, and registration changes.

A computer-vision system turns chess clubs’ existing cameras into live positions, move lists and PGNs for games played on physical boards.

A searchable directory of Christian TV channels, streaming services, and regular church broadcasts, with ways to watch each.

A Chinese-language site for browsing and searching Daoist classics, organized by traditional collections and subject themes.

A Spanish-language tool for issuing electronic transport-control documents (DeCA) and collecting signed delivery slips on a recipient’s phone.

A free tracker for several trading card games that connects your collection to deck lists and shopping lists.

An iPhone focus timer pairs adjustable Pomodoro sessions with a dog companion, collectible finds, room décor, and optional app blocking.

A downloadable desktop suite for editing, signing, redacting, OCR, and comparing PDFs on Windows, macOS, and Linux.

A browser-based utility that writes dates, locations and captions from Google Takeout’s separate JSON files into photos and videos.

A phone-based race tool for backyard ultra runners and their crews, combining a lap plan, race clock, break reminders, logging, and live nutrition totals.

A browser-based tool that converts TCX, GPX, or FIT running files into structured text for analysis with ChatGPT, Gemini, or Claude.

Faber presents a field-recording tool that turns spoken site observations and measurements into quotes, inspection reports, room plans, and client visuals.

Ink Postal connects to AI assistants through an MCP connector and offers to print and mail completed forms or letters.

A public tracker compares robotics companies’ reported revenue, disclosed funding, and operating results.

A Russian-language professional resource for cardiac conduction-system pacing, with an interactive activation model, case reports, and a center registry.

A free desktop app for Mac and Windows that helps veterans organize records, compare them with VA rating rules, and prepare claim forms.

This interactive tracker organizes 45 blockbuster drugs by when they lose US exclusivity, with sales exposure, company views, and source-linked data.

A browser-based design tool for making Korean- and English-language T-shirt and merchandise artwork, then exporting files for print.

An open reference to Sword x Staff’s mechanics, stats, builds, and progression, with simulators and planning tools.

A flight-aware prayer planner estimates prayer times along a route and pairs them with a jama' planner and a ground Qibla compass.

Simetta presents a training simulator for distributors and manufacturers, turning company procedures into guided lessons and scored practice for ERP tasks.

A free calculator for water utilities to build an IWA-standard water balance, estimate leakage and losses, and report costs, carbon, and uncertainty.

A public, downloadable dataset tracking website technologies, countries, industries, hosting, and email across 32 European countries.

A browser-based tool that estimates an audio file’s musical key, tempo, and tuning, with a command-line version for processing folders.

A free Mac app lets you click into HTML pages written by Claude or Codex, edit them like documents, and save your changes.

An interactive explorer for flying among solar-system objects, spacecraft, stars, and galaxies, with controls for tracking and changing time.

A free directory lets people compare Medicare-certified dialysis centers by location, CMS ratings, patient outcomes, and practical details such as evening shifts and home-dialysis training.

A Spanish-language search page for medicine supply problems reported by Spain’s medicines agency, with shortage dates and information about alternatives.

A free Indonesian-language set of calculators and guides for people working in South Korea through the EPS program.

A PDF reader that collects passages on a notes canvas, connects related ideas, and links each note back to its source page.

Notavida describes a workflow for turning a teacher’s account of an incident into a director-approved report that a parent can read and sign on their phone.

Planning software for restaurant and service-business owners, tracing costs from menu prices and payroll through rent, profit, and cash flow.

PenLayer is a macOS overlay for annotating shared screens during calls, lessons, demos, and presentations.

Tax Residency Days lets people enter or import travel stays and check how those days are counted across multiple countries.

A free, no-sign-up set of electrician calculators for offsets, saddles, stub-ups, conduit fill and related bending tasks.

A DaVinci Resolve Studio panel for automating camera syncing, card-bin cleanup, cue sheets, and delivery prep.

An open-source addon displays WoW Forever quests, dialogue, books, tooltips, and interface text in Japanese, with a hold-to-see-English option.

A Windows desktop app for managing a livestream setlist and displaying it in OBS with animated visual themes.

A browser-based workspace for Turkish electrical-installation projects that turns shared project data into paperwork, calculations and schematics.

A free, open-source Windows app that finds, backs up, and restores PC game save files, with optional cloud storage.

An independent NBA app that estimates how a player’s absence changes a game’s projected margin.

A browser-based generator that presents a workflow for turning a selected real-world area into a Minecraft world.

A searchable component database for repairers looking for technically compatible replacements for chips used in laptops and computers.

Deskdex tracks Pokémon card collections using marketplace-published figures, with the source and read date attached to each price.

This browser-based tool combines photos and PDFs, adjusts them to an upload form’s file-size requirements, and prepares a correctly named PDF.

A UK-focused tool for comparing nearby or en-route fuel and EV charging prices, with filters for detours, vehicle details and charging speed.

A free online toolbox for freight forwarding and foreign trade, with calculators, code and route lookups, and document-generation tools.

A browser-based tool for decoding macOS .fseventsd logs into searchable timelines, path trees, and investigation findings.

An open-source macOS app that uses an Oura Ring for cursor control, clicks, scrolling, slide and music controls, and offline health and exercise features.

An iPhone beta routes a nearby speaker’s voice to the listener’s hearing aids, AirPods, or earbuds.

An iPhone app for recording a child’s words, tracking vocabulary growth, and keeping notes or audio of how those words sounded.

RapidFlow is a free Mac beta for dictating English, Hindi, or Hinglish into whichever app has the cursor.

An Arabic-language reference site for searching hadith, browsing narrators and books, and exploring specialized research tools.

A free trip planner for finding jeepney routes, transfers, boarding points, and estimated fares in Philippine cities.

Mellow is a free, open-source Windows desktop companion for voice commands, dictation, meeting notes, and on-screen help.

An iPhone and iPad app for handling the books of groups such as PTAs, neighborhood associations, clubs, and sports organizations.

A stock and catalogue tool for garment wholesalers, with order-packing views and buyer-ready links for available designs.

Palna describes a family baby tracker for logging feeds, sleep, medicines, growth, and vaccines in English, Urdu, or Roman Urdu.

Proven Fixes is a lookup for solar and home-battery alerts, pairing symptoms with reported failures, fixes, parts, and dated price listings.

A pilot service for UL 508A panel shops that analyzes a bill of materials and power schematics to produce a cited short-circuit current rating report.

A Texas-focused set of tools and records for royalty owners checking payments, lease details, and oil-company paperwork.

A choir-practice app that reads photographed or PDF sheet music and brings one SATB vocal line forward for practice.

A Wales-based project offers three free software synthesizers for macOS, in VST3 and AU formats.

A step-competition app for friends, with shared leaderboards, daily recaps, and an optional group road-trip mode.

The site charts everyday U.S. prices from 1950 to today, with city comparisons, visitor-requested charts, and a salary calculator.

Unified Log Parser reads macOS tracev3 archives, diagnostics folders, and log show exports, then lets investigators filter, triage, and export the results.

A self-hosted monitor for restic that checks repository integrity, tests file restores, and flags backup failures.

A well-water guide with calculators for choosing treatment, sizing a softener, and estimating its running costs.

A searchable guide to the manga chapter where an anime season or film leaves off, with chapter numbers presented without plot spoilers.

A Japanese comparison tool that converts generative AI prices for video, images, audio, music, and APIs into yen-per-unit estimates.

A planning tool for interventional radiologists that uses CT angiograms to simulate selective angiographic runs, including working angles, catheter and injection proposals, and a time-sequenced run.

An unofficial Ableton Live remote script that adds sequencing, scale-aware pads, audio chopping, and meters to the Akai APC40 mkII.

ArtDots lets people map street art, log discoveries, and explore pieces found by a community of lookers.

A browser-based tool for importing a Magic: The Gathering decklist, choosing card artwork, and exporting the finished list.

A reference for finding bandsaw blade and sanding belt sizes by machine model, with options to browse documented machines and save size cards on your device.

A map and iPhone app that show reported availability of gasoline and diesel at Russian fuel stations.

A side-by-side comparison of 13 Milan-area Bernina train day trips, with filters for price, train type, group size, and time in St. Moritz.

Bids by NAICS indexes federal contract awards and open SAM.gov notices by industry code, with a paid daily digest for selected codes.

A free reference for finding washer, dryer, refrigerator, HVAC, and other appliance fault codes by equipment and model family.

A travel-planning app tracks Schengen stays alongside the temporary import deadline for a traveler’s vehicle.

A WhatsApp sales assistant configured with a business’s prices, hours, delivery rules, and sales process, with monthly plans starting at $189.

A free toolkit for building Pokémon Champions teams, checking matchups, and browsing tournament teams and metagame data.

CheckPaper presents an AI-assisted workflow for reviewing papers by checking calculations, code, references, and claims against evidence.

A browser-based tool that turns images and 3D models into files for Minecraft’s Chisels & Bits mod.

A paid Mac app that brings tasks, timers, focus tools, and utilities into the laptop’s notch.

A Windows app that types speech into the active window, with optional AI actions on a second hotkey.

Dio Fairs is Hebrew-language management software for fairs, markets, and pop-ups, covering booth bookings and payments, event-day attendance, suppliers, and per-event costs.

A free checker estimates which games in a Steam library will run on a given PC, including approximate FPS and upgrade guidance.

A phone-based management app for Ethiopian layer farms, covering daily flock records, feed, health, inventory, sales, and expenses.

Dotted combines habit tracking, tasks, mood notes, and a photo journal in an app for Apple devices.

A free, open-source life-planning app that connects long-term vision and seasonal priorities to goals and weekly actions, with an AI companion.

DuoDub is a Chrome tool for syncing two Netflix windows while giving each viewer a different language in their own headphones.

A digital trip sign-on tool for river and sea paddling clubs, with active-trip headcounts and trip information designed to remain readable offline.

A browser-based editor for cleaning, organizing, checking, and exporting M3U playlists.

Emergency Binder Now turns guided answers about a parent’s health, contacts, documents, and wishes into a personalized, print-ready binder.

An Australian home-battery tool brings rebate calculations, approved battery configurations, advertised prices, and installation data together for people checking a quote.

Everkept is a private journal app for iPhone, iPad, and Mac, built around saving photos, words, and voice notes by date.

FairBillCheck offers a $29 report comparing itemized medical charges with relevant Medicare amounts and drafting a letter to the billing office.

Farwake presents MAI as an onboard system for finding answers in a vessel’s own manuals, maintenance history, drawings, and paperwork.

FayaPay is an Android app designed to send money, buy airtime, and check balances through MTN MoMo, Telecel Cash, and AT Money USSD menus.

A paid data feed that turns newly filed business permits into weekly, searchable lead lists.

A free tool for turning STL files into G-code, with printer profiles, adjustable print settings, and a 3D model preview.

A free, browser-based suite of freight and shipping calculators, from parcel dimensional weight to pallet and container capacity.

A paid service that assembles an FDA establishment’s public registration and listing record, renewal steps, and deadline reminders.

Diurna presents a Mac meeting recorder that transcribes on-device and links decisions, actions, and open questions to their exact moments in the transcript.

A pilot-stage app for sailors, crews, and coaches to score sailing skills, plan training, and track progress across boat classes and wind conditions.

Paperwing tracks creative-file handoffs from contributors’ uploads through drive verification and sign-off.

PriceBite is an invoice-reading tool for independent Canadian restaurants that tracks supplier prices and flags increases.

A monitoring service alerts energy and data-center developers to local moratoria and siting-rule changes across seven states.

Stingkit is a browser-based maker for short product launch videos, with six templates and exports in three aspect ratios.

A chess analyzer that says it finds recurring mistakes in your Chess.com games and turns them into targeted puzzles.

A phone-and-tablet app for organizing ceramic glaze tests, from numbered tile series and layer notes to firing details, photos, comparisons, and exports.

A browser-based sound mixer combines recordings of nature in Mexico with soft noise for sleep, focus, or relaxation.

An unofficial fan database for GUNDAM CARD GAME cards, official rulings, errata, and alternate-art printings.

An unofficial fansite with browser-based tools for exploring crafting trees, account craftables, and character gear.

Enter an address and storm date to see nearby NOAA radar hail signatures and spotter reports, with a $19 PDF available for the detailed record.

A live tracker for comparing hard-drive prices per terabyte and checking nearby in-store stock.

A Japanese reading community for finding books through anonymous short recommendations, search filters, and library lookup.

A forthcoming desktop voice-typing tool for Mac, Windows, and Linux, presented as offline-first and usable with speech models users choose.

İçtihat.app presents a research platform for finding Turkish court decisions, checking citations, and reviewing legislation as it stood on a particular date.

A boxing-training app for home sessions, combining spoken combinations, camera-based punch counts, timed rounds and post-session feedback.

A Chinese-language board tracks freelance demand by work category, with recent request counts, listings, median bids, and price ranges.

A browser-based carpentry toolkit that brings measurements, material planning, supplier prices and job quotes into one workflow.

A searchable kart-racing database connecting racer profiles, event results, tracks, series, and broadcast moments.

KidWave coordinates school and kindergarten pickups through parent updates, a live staff queue, and handoff records.

Kushu pairs Qur’an reading sessions with app blocking, prayer reminders, and usage tracking across phones and computers.

A free browser-based timer sits alongside calculators for durations, work hours, dates, time zones, and other time-related tasks.

A service that takes an assembly manual and produces a branded animated instruction video, with a free preview before a paid finished film.

A browser-based design tool for wrap and print work, with 3D previews and advertised print-file exports.

A Windows tool for turning photos of fabric, marble, or artwork into real-size material maps or framed 3D assets for Blender and 3ds Max.

It converts an MBOX archive into one chronological PDF or a ZIP of individual email PDFs, with processing kept on the device.

Burrow is a planned Mac app that puts a 3D buddy, Claude Code and Codex session alerts, and quick approval controls in the Mac’s notch.

A browser-based cat-placement puzzle with playable boards, a screenshot solver, and level guides.

A free iPhone beta that maps weather conditions to a motorcycle route, including when the rider is expected to reach each stretch.

A free calculator estimates notary startup costs, monthly take-home, and time to break even using state-specific fees and the work you expect to do.

Notchio presents an always-on-top Windows 11 notch that surfaces things like media, calendar, weather, clipboard, and files.

Not et al. is a not-for-profit programme for helping researchers find people before a conference and remember them afterward.

A Mac dictation app that transcribes speech on-device and inserts the text at your cursor in other apps.

A collection of practical mini-tools, from commute weather and nearby lunch menus to walking routes, quizzes, boat trips, and Kindle reading.

A free suite of Old School RuneScape calculators for drop odds, dry streaks, XP goals, combat levels, and GP per hour.

Overturn describes a service that reviews healthcare 835 remittance files, ranks denials, drafts appeals for staff approval, and checks later remittances for payment.

A free set of calculators and checkers for print-on-demand book covers, interiors, trim sizes, royalties, and print costs.

A measurement-based matcher that shows which women's sewing-pattern companies draft near your size, height, and cup size.

Windows software stitches microscope camera frames into large digital slides, with measurement tools and exports for QuPath and other slide viewers.

Postluma processes JPEGs and PNGs into six photo finishes, each based on an analysis of the individual image.

A Romanian-language tool for collecting supplier offers from PDFs, WhatsApp photos, or email text and comparing prices by item and project total.

A free Android prayer app that times reminders around the Iqamah schedule users enter for their own mosque.

An in-development app describes using one camera to track fencing lunges, replay them frame by frame, and chart a fencer’s progress.

A searchable reference site for engineering tables, material data, thread dimensions, conversions, and calculators.

A browser-based photo tool for resizing images to a file-size limit, including ranges such as 20–50 KB.

A browser-based planner compares leave options against shift rotations to find longer breaks, view the year, and compare schedules with a partner.

A tool for commercial glazing shops that calculates storefront drawings, glass schedules, cut lists, and order guides from opening dimensions and a selected framing system.

Shepherd turns a group leader’s spoken post-meeting check-in into reminders about people and a short brief for the next gathering.

A Thai-language contract builder for loans, rentals, freelance work, sales and powers of attorney, with editing and document downloads.

A Charlottesville-area guide to bagged-ice sellers, with town and route pages, dated price evidence, and ice-planning tools.

A browser-based music generator maps a city's daily weather to a repeatable instrumental composition.

A point-of-sale system presented for Ugandan shops, pharmacies, and hardware stores, with offline checkout, mobile-money payment options, and multi-branch management.

Solar Array Fit compares panel listings against installation-area dimensions and MPPT limits, then ranks viable purchasing plans by cost per watt.

A browser-based workspace for marking up a manuscript, recording narration, editing takes, and checking files before delivery.

An independent record layer for Kakobuy spreadsheet entries, with source-linked item records, verification states, measurement tools, and field notes.

A free browser-based 3D maker for designing, squishing, and sharing virtual toys.

A live tracker for SSD prices per terabyte and nearby store stock, with filters for drive type, brand, location, and availability.