Useful Tools

A browser-based planner for comparing interplanetary transfers, launch windows, and gravity-assist routes.

An audiobook app that reads your own books and papers aloud, with questions answered from the material you have heard so far.

An Android calendar app presents Tibetan and historical Japanese dates alongside their almanac readings, solar details, and local sunrise and sunset.

A free, open-source app that replaces personal details in text, PDFs, Word files, and photos with labels, then can restore them in an AI’s reply.

A browser-based calculator prices pallet timber and produces customer-ready quotes with drawings.

A searchable database of official EU and US dangerous-product alerts, organized by the online marketplaces named in the records.

An open research site for exploring Spanish Liga match and refereeing data, with filters, comparisons, analysis and downloadable tables.

A browser-based workspace for building a handpan layout, playing it, and exploring interval patterns across a multi-instrument scene.

An interactive tracker compares reported prediction-market volumes across exchanges, with market breakdowns, downloadable data, and a state-by-state legal tracker.

2by turns a plain-text building model into framing drawings, span checks, cut lists, and shopping lists that update together.

a11y-repair scans web pages for WCAG 2.2 A and AA accessibility issues, marking findings on screenshots and describing fixes alongside what a careless fix could break.

A digital hall display for veterans’ and fraternal posts, showing events, notices, birthdays, and member photos.

A calculator estimates concrete volume, bag counts, and ready-mix quantities for pours ranging from slabs and footings to posts, walls, and steps.

An upcoming free iPhone app for turn-by-turn cycling routes in Dubai, prioritizing cycle tracks over streets.

This Japanese tool compares drum-style washer-dryers against measurements of your home, including the pan, drain, faucet, and surrounding clearances.

Fripouille is a French-language Mac app presented as a way to control apps with spoken, multi-step instructions, triggered by a clap or a wake phrase.

A browser-based tool for drawing and planning Norwegian homes, from importing old plans to preparing scaled application drawings.

A searchable directory of 1,806 places to submit or promote AI products, with details on costs, links, and review processes.

Lotdesk is a cataloging tool for auction houses: staff record a lot’s photos, description, condition, and estimate on a phone, then print a catalog or export the sale.

Lotwell is an iPhone and iPad parking system for condominium and homeowner associations: scan a numbered stall and a car tag or plate to get an allowed-or-not result with a reason.

An interactive preview for exploring recorded NOAA satellite lightning observations across the Americas.

A free browser-based editor for drawing terrain, routes, labels, clouds, and stamps on custom maps.

A UK parent-focused guide to children’s toys, games, slang and trends, with safety checks and practical tools.

Printytron presents a browser-based tool that turns plain-language descriptions into 3D models intended for printing, with STL, OBJ and 3MF downloads.

A free web app plays recorded video from seventeen themed retro-TV streams, with an Android edition also available.

An unofficial student-group hub for Yaroslavl Urban Planning College brings together class schedules, changes, cafeteria menus, and college links.

An Arabic guide showing how the August 2027 total solar eclipse is expected to appear from cities across the region, with an interactive simulator.

A UK van-breakdown guide orders roadside safety, basic diagnosis and ways to find recovery, repairs, replacement transport and help for a stranded load.

A French-English dashboard models minerals tied to AI and digital infrastructure, comparing estimated demand, mine supply, refining concentration, and where value accrues.

A Spanish-language browser tool for removing sensitive information from documents before sharing them with AI, then restoring the AI’s reply using a saved map.

An app for hunting clubs to book stands, verify arrivals with QR tags, share members’ locations while they’re checked in, and report sightings or hazards.

A free desktop app that guides a trusted helper through spending from an existing Bitcoin multisig wallet.

An interview-prep site pairing one-minute algorithm games with coding problems, quizzes, and timed mock interviews.

A browser-based maker for turning a portrait into a customizable fantasy trading card, with free image downloads and a print layout.

A French legal research tool that checks public-sector case-law citations against official sources and provides the cited passage with a link to Légifrance.

This open-source, self-hosted tool evaluates job postings against a user's profile, selects two roles, and prepares application materials from approved information.

A searchable CSR Racing 2 record database pairs cars’ fastest recorded times with their tunes, alongside comparison tools and player-community links.

An iPhone and iPad app for live, on-device bilingual captions, designed for two people sharing a screen.

A data-collection workflow for electrical engineering firms that turns field photos and drawings into a reviewable draft model, with extracted values linked to their sources.

A workflow tool for tracking catering sets across six stages, from fridge count through delivery to the aircraft.

Ground Truth describes a multilingual reporting system for frontline teams: workers send a brief voice, text, or photo update, and managers receive a morning summary linked to its sources.

A Toronto FDM manufacturing shop offers instant pricing and lead-time estimates for uploaded STL parts.

A browser-based DJ mixer pairs two decks and mixing controls with year-end Top 100 song lists from 1956 through 2025.

Invisimark creates a differently marked copy of a photo or video for each recipient, then uses a downloaded case file to help identify the source of a later leak.

A free, no-sign-up tool for removing words or phrases from PDF and EPUB files locally in your browser.

An Android dictionary overlay for looking up Japanese kanji by drawing them or selecting text on screen without leaving the page.

Kanzu presents a concert-seat preview app combining venue maps, estimated 3D views and photos submitted by concertgoers.

Kidux is a child-focused operating system with preconfigured learning activities and controls for adults.

Software for performing laser shows live or building them on a timeline, with DJ and timecode sync and support for laser hardware.

A UK event-planning tool that estimates whether you can leave a concert, match, or show and still catch a train home.

A one-person shelf of six free iPhone apps, from warranty reminders and migraine logs to a timer that turns remaining time into fading light.

A free, no-sign-up calculator for working out Islamic inheritance shares, with explanations and comparisons across legal positions.

An interactive experiment lets visitors vary leaf types, wind, atmospheric density, and gravity, then release leaves and explore their motion.

Fill, sign, watermark, and rearrange PDFs in your browser; the site says files stay on your device.

An app listens to music playing aloud and follows along with synchronized lyrics, for records, cassettes, CDs, radio, and other speakers.

A free, fictional decision game lets you test how different responses affect a modeled orbital-debris scenario over a decade.

A Mac app that turns Planning Center plans or pasted setlists into Ableton Live show files, with stems, tempo maps, arrangements, and transitions.

A DIY push-button recorder sends audio to your Mac, where local software transcribes it, labels speakers, and lets you search what was said.

A set of calculators and product references for epoxy pours, with product limits linked to manufacturer data sheets.

A paid service that turns a fantasy football league’s scores, benches, and history into a weekly sports-paper-style edition or an all-time Record Book.

A Mac and iPad app for designing, painting, and preparing wakesurf boards for CNC cutting; the site says it is in private beta.

A browsable database of running-shoe geometry, with measurements labeled by source type and confidence.

Sidur.app presents a free Jewish prayer and blessing app for Apple Watch, Wear OS, and Garmin, with offline access and several prayer traditions.

A browser-based sound table tennis game with CPU matches, audio guidance, and controls designed for screen readers.

TahtX describes a camera-and-tablet system that magnifies and adjusts classroom-board writing for students with low vision.

A city-based fuel finder showing which stations are selling gasoline, diesel or GNV, with location-based comparisons by trip and queue.

A white-labelled, time-limited campaign lets staff submit anonymous observations about work processes and turns them into a Process Appraisal.

An unofficial Korean-language catalog for Chiikawa merchandise, with searchable items, release and restock updates, maps, and a personal collection notebook.

A paid Mac utility puts window management, screen breaks, and clipboard history behind the MacBook notch.

A suite of geospatial tools for cleaning, matching, coding, and validating administrative boundary data.

VortexYard is an interactive 3D airflow experiment where you place and adjust shapes in a browser-based wind tunnel.

An open-source, local tool that turns a Wayback Machine capture into a downloadable ZIP of a static website.

A Korean workplace-themed site gathers 26 free browser games alongside salary calculators, popular posts, deals, and news links.

An interactive 3D model lets visitors explore the Prague Astronomical Clock’s dial as the date and location change.

AwuCat presents a browser-based toolkit for Turkish legal work, spanning UDF documents, e-signatures, legal calculations, deadlines, case tracking, and legal research.

A scoring and tournament app for gully, indoor, box, and tape-ball cricket, with ball-by-ball updates, scorecards, player stats, and league tables.

An interactive explorer recalculates completed Premier League tables from 2008/09 to 2025/26 after removing Manchester City and its league matches.

A writing assistant for Linux and macOS that can correct, rewrite, shorten, adjust tone, or translate Polish and English text inside other apps.

This Russian-language tool calculates glass dimensions for INOXHUB shower systems and offers PDF and SVG drawing outputs.

INFIN8 is a software modular synthesizer for making sound and audiovisual work, with a free beta playable on the web.

A browser-based generator gives network engineers 376 sarcastic explanations for why an incident might not be the network’s fault.

Stab is a guitar-tab sequencer for composing and transcribing, with string-aware editing, recording alignment, and playback through a guitar synth.

CarBump turns a walk-around video into a 3D car model, then matches later photos to the same panels for before-and-after comparisons.

A free frog-call guide that pairs listening and spectrogram comparisons with a location-based list of frogs and open iNaturalist recordings.

An independent student project that helps CU Boulder students find classrooms without a scheduled class during a chosen time window.

A macOS dictation app that turns speech into text in the app you’re using, with transcription and other features described as running locally.

A Colorado-only service that sells hunters a tag-specific plan for parking, camping, walking routes, and hunting spots, with files for their map app.

A browser-based projection-mapping tool for placing light, images, and motion across surfaces in a room.

A Windows, macOS, and NAS/Linux utility that checks Jellyfin setups and lets users review fixes for home access, family logins, folders, live TV, and playback.

A browsable library of animated text styles, with prompts for recreating each effect using AI.

A position-specific NFL player leaderboard that uses an irreverent 0–100 rating to rank early-season performance, with higher scores meaning worse play.

An iPhone and iPad app generates drums, bass, and keys or guitar to play along with editable chord charts.

The service analyzes technical papers around a research question and presents potential capabilities and commercial applications with links back to the evidence.

A browser-based blues workshop for shaping backing tracks, solos and lyrics, then exporting tabs or recording a shareable band video.

A free alpha Mac utility for editing music and album details directly on an iPod classic, without maintaining a separate library to sync.

A catalog of open comic and graphic-novel calls lets creators compare a project with each organizer’s published requirements and prepare their submission.

A searchable, browsable guide to Australian slang, with plain-English definitions, pronunciation, example conversations, and a quiz.

A browser-based genogram maker for drawing family diagrams in standard notation, with no account required.

A compact-equipment pricing tool that compares auction sale prices with Southeast dealer listings, adjusted for fees and estimated hauling to your zip.

Herebeat is a subscription iPhone app for tracking official alerts, forecasts, and local conditions, with widgets and an Apple Watch app.

KeyPost presents an integration that posts Shopify orders, payouts, fees, and refunds to QuickBooks Desktop and records matching data in an Excel workbook.

A free app in testing for tracking seed libraries, individual plants and animals, crosses, breeding goals, and pedigrees.

A Brazilian Jiu-Jitsu training tracker that combines session logs, belt progress, tournament prep, and weight tracking with fighting-game mechanics.

A browser-based CAM tool for turning drawings into simulated toolpaths and G-code for routers, mills, plasma tables, and lasers.

A free Windows PDF viewer designed to put the document—not toolbars, menus, or settings—in the window.

Morrow is an audiobook player for libraries hosted on Audiobookshelf, BookOrbit, or Grimmory servers, with apps for Apple devices and Android.

This free, open-source app for Mac and Windows transcribes speech and types cleaned-up text into whatever app you’re using.

A Hindi-first guide to daily puja, local Hindu calendar details, auspicious dates, and kundli.

Nataal presents a service for finding and buying photos from Senegalese weddings, gamous, festivals, and graduation ceremonies.

A free checklist and plain-language guides help international students navigate steps around arriving in Canada, with links to official government sources.

A collection of US-focused tools for finding counties, measuring distances, mapping areas, and exploring population data.

A browser-based PDF viewer for reading files, inspecting their contents, and checking for security-related signals.

A free browser-based generator for 11 barcode types, paired with plain-English guides to choosing, sizing, and printing them.

Plugview is a free, open-source macOS app and command-line tool for viewing a capture card’s HDMI signal, with sound, in a window.

An iOS podcast player for audio dramas, serialized fiction, and narrative history, with a spoiler-gated codex for characters, places, and terms.

A free, registration-free QR maker for links, text, Wi-Fi, contact cards, events, and more, with styling and image export handled on your device.

A collection of browser-based analytical tools and articles for experiments, estimation, risk, planning, location, and networks.

A browser calculator estimates the loading-coil turns and build details for shortened dipole antenna legs.

A phone-browser tool estimates a Pokémon card’s grade and compares its raw price with graded-card sales.

A Polish-language planner helps gymnastics coaches turn group test results into six-week strength plans and printable training sheets.

A searchable directory of solar installers across eight states, with historic installed prices per watt drawn from public data.

A tea-brewing tool turns taste feedback into one suggested adjustment and saves recipes that work.

TalkKeep is a Mac app that says it transcribes calls on-device, identifies speakers, and lets you search transcripts and replay the matching audio.

TDBuilder is a browser-based tool for composing, auditioning, and transferring 16-step bass patterns for a TD-3.

A free, multilingual collection of browser tools for images, PDFs, video, text, and data; the site says files stay on your device.

A Paris-based studio by artist and scenographer Patrick Laffont de Lojo, presenting applications for stage production, image capture, and archiving.

Torchy presents a stadium-display platform that turns fans’ phones into coordinated pixels for words, logos, and animations.

A paid reminder service that turns a USDOT number into a calendar of trucking compliance dates, fees, and official filing links.

A fan-made hub for tracking streamer Lila’s appearances, checking her calendar, and finding her Twitch, Kick, and YouTube channels.

This cycling tool turns GPX routes into a shareable forecast timed to when riders are expected to reach each stretch of road.

Free browser tools make and batch-process sleep screens for Xteink X4, X4 Pro, and X3 e-readers.

A Chinese-language divination and charting page for yarrow-stalk and coin-cast 六爻, six-number 梅花取数, and 八字 birth charts, with optional AI interpretation.

YeGez is a travel app for finding local dishes, curated places to eat, and useful phrases across European cities, with offline access and itinerary planning.

12 Axes maps political views across twelve independent dimensions, then lets visitors explore related ideologies, figures, countries, and group comparisons.

A configurator for window and door sellers that presents catalog-based products in 3D and describes generating quotes, cut lists, and order documents from one configuration.

AeroCite answers aviation-regulation questions using indexed documents from ten jurisdictions and EASA, with citations to the clauses it says support each statement.

AimScan is a phone app that scans paper shooting targets, scores shots, and tracks training sessions.

AI Off is a free browser extension that hides selected AI features and content on supported sites, with four levels of control.

A free fan-made tool that places tabletop scenario layouts over a photo of your playing surface.

An interactive field of dots responds to camera-detected movement and microphone input, with controls for shaping its colors and reactions.

Barcodie presents a camera-based checkout system that recognizes unpackaged bakery, produce, and other items, then sends product codes to an existing POS.

A parts-tracking system for motorcycle and car race teams, built around scanning crate labels and logging parts taken—even offline, according to the site.

A searchable calendar of readings, signings and book festivals, with listings by location and author.

A free MTG Commander life-tracking app for 2–6 players, with commander damage, deck-specific actions, and offline use.

A free catalog of step-by-step 3D instructions for models built from bricks and sets users already have.

The site ranks Kansas City auction lots using eBay sold comps, estimated all-in costs, and a walk-away max bid.

A screenwriting app pairs industry-format script entry with a visual planning desk of character sheets, location cards, scene boards, and research clippings.

CapaTheNotch puts Claude Code and Codex usage limits, a camera-side teleprompter, and Russian voice dictation in the MacBook notch area.

CarrierSweep is a desktop app for independent life agents that reads information from carrier portals and presents policy activity in plain English.

A provider search for healthcare listings that publish cash prices or offer self-pay discounts.

A woodworking design tool that turns plain-language prompts into 3D CAD models with separate parts, joinery, dimensions, and downloadable plans.

A free browser music quiz asks you to identify a song from a five-second clip and four choices.

The site presents a Manitoba-focused tool for comparing an insurer’s vehicle valuation with listings and producing a claim-support PDF.

A Windows overlay puts Twitch, YouTube, TikTok, and Kick chat in one floating window while you play.

Clotr is a browser extension that checks text for sensitive details before you send it, then lets you hide a match or send anyway.

An interactive color-mixing tool lets you experiment with a chosen palette, explore color studies, and look for possible mixes from a photo.

Cone Canvas is a course-layout tool for designing autocross courses, with options for aerial imagery, boundaries, cones, and ProSolo two-course layouts.

Couchside presents a self-hosted server for movies, shows, and live TV, with a web app and Roku app.

A Chrome and Firefox extension for downloading selected Meta and Google ad-library material into a ZIP, with ad copy in spreadsheet and JSON formats.

A Minecraft: Java Edition mod uses Claude to build structures from natural-language requests, with a one-click undo.

A site for audio plugins built around heavy music, with four free downloads available now and two more plugins in testing.

A digital tool for Spanish road-freight operators to create DeCA transport-control documents as PDFs, deliver them by QR code, and keep a version history.

A browser-based tool for extracting a base from one Enshrouded world save and merging it into another.

An iPhone app that collects tickets from PDFs, photos, and screenshots, then organizes their details and entry codes in one library.

Enter a 10K, half-marathon, or marathon time to see an estimated percentile and comparisons with other runners, celebrities, and historical results.

A route-planning and visit-report tool for recurring service businesses, with a free route-savings estimate and a $79/month plan.

An open-source macOS app for previewing and controlling Canon EOS DSLRs over USB, with controls tailored to scanning film negatives.

A Japanese-language calculator compares two free-school options by first-year cost and the time families spend traveling and accompanying a child.

A searchable guide to short dramas across four apps, with episode counts, free-episode ranges, and finish costs where prices are published.

A gear-tracking tool for crews to label equipment, record check-outs, manage kits and reservations, and keep an inventory across phones and the web.

Jex lets you train text classifiers on labeled examples, then classify text through a browser demo or API.

PRKS is an iPhone app in development intended to turn a theme-park visit into a record of rides, estimated waits, walks, and a map.

A free regional finder for public-course tee times, with price, time, course, and play-style filters plus links to book.

A room-planning tool for checking home golf simulator fit, arranging equipment in 3D, and estimating build and first-year costs.

A live dashboard tracks U.S. ground stops, projected disruptions, airport delays, and weather, with links to alerts and an API.

A phone-based scoring app for golf societies and friends, with rounds, leagues, statistics, and shareable scoreboards.

HemOS turns an old iPad into a household dashboard for weather, energy prices, connected home systems, and an optional morning view for children.

Hoard Patrol sends one small decluttering task by text at a time you choose, with short replies for finishing, swapping, or getting unstuck.

ImportDutyCheck estimates duty, import tax, and landed cost for selected product groups across five destinations.

INSICK presents a fleet-health platform for unmanned systems, describing flight-log analysis, component failure prediction, and manufacturing-batch tracking.

A browser-based tool that offers to turn an uploaded track into a beat-matched DJ intro, with adjustable length, stems, and build options.

A Korean-language guide to Osaka events, pop-ups, shopping benefits, and airport-to-city transport.

Jot Jot records spoken memories, helps shape them into written stories, and lets families arrange them in a printed book.

A browser-based sound design studio for building instruments, editing samples, layering sounds, and exporting kits.

Kuur offers story-driven films with timed lyrics for songs, currently as a made-for-you service.

A macOS app that restores Launchpad’s full-screen app grid, with pages, folders, search, and drag-and-drop organization.

A paid journaling game that guides players through CBT-style prompts for anxious thoughts, with a tree-growing scene and pages kept on their computer.

A free HVAC calculator extracts room details from floor-plan PDFs or schedules, then estimates cooling load, airflow, and per-room results.

A free beta music-notation editor designed for Finale users, with keyboard and MIDI entry, playback, arranging aids, and score exports.

The service turns forwarded group emails into a shared, password-protected page with summaries, dates, to-dos, and attachments.

A practical guide and planning hub for choosing sublimation equipment, preparing artwork, and following instructions for specific project blanks.

A counselling tool lets NEET PG candidates build a choice list and compare likely seat outcomes with 2025 closing-rank data.

A free desktop assistant that answers MapleStory Classic World questions over the game, with local database lookups, AI chat, and play-planning tools.

Margo is a bookkeeping tool for resellers that allocates lot costs across individual items and tracks profit, stock, and money set aside for taxes.

MarineOS presents route planning in a browser, with charts and boat data synced across a helm display, phones, tablets, and the cloud.

A portable CLI and GUI tool that checks whether mods in a Minecraft server’s folder are listed as compatible with a target game version and loader.

A public, crowdsourced service for checking reported availability of mental-health medicines at Philippine pharmacy branches.

An independent guide to the Roblox game Melt All The Ice, with a first-house walkthrough, level references, and an interactive check for common blockers.

Merestone runs a survey firm’s QA/QC checklist against PDF plats and related documents, comparing details within and across sheets and returning proposed redlines.

A free, self-hosted tool for importing iMessage, WhatsApp, and SMS backups into a searchable archive.

A free, open-source phone app for bands to track venues, follow up on booking conversations, manage gig dates, and keep their performance finances.

A free Mac menu-bar app connects AI agents to Apple Music so they can find music, build sets, and control playback.