Useful Tools

A browser-based tool that guides speaker design from driver selection through enclosure, crossover, drawings, and a parts list.

A free desktop suite for designing circuits and 3D parts, programming boards, and testing hardware.

A Korean-language humanoid-robot tracker combines model comparisons, industry news, supply-chain coverage, and structured data on robots, AI models, investment, and deployment.

Paste a Warhammer 40,000 army list to generate a print-friendly cheat sheet, with an optional phone play mode and personal reminders.

A Japanese AI receptionist handles calls, reservations, and inquiries, then sends summaries to staff by smartphone and email.

A procedural dungeon builder lets you generate, explore, save, and export playable 3D layouts.

A Chinese-language stock and futures research library presenting historical datasets, data studies, a forum, a shop, and a market simulation game.

A preview site for an iPad 3D-creation app, with modeling, texturing, bending, and on-device rendering tools.

A free, no-account terminal for U.S. M&A, IPOs, advisors, valuations, and deal terms, built from SEC filings.

A set of tools and guides for checking clinics, costs, destinations and recovery before arranging treatment abroad.

A browser-based tool that analyzes a reference clip’s cuts, frames, light, and motion, then builds a downloadable prompt pack for AI video workflows.

Ada Steel turns descriptions of rectangular steel or aluminium frames into a 3D model, member schedule, cutting list, and fabrication files.

An Android app designed to call businesses for phone-only reservations, using the owner’s phone number and instructions they approve first.

A Windows app for DJs and VJs to map projector visuals onto club walls, booths, and other surfaces, with layers that can respond to the music.

A downloadable desktop companion that takes voice or typed requests and uses Claude Code to act on your Mac, alongside notch-based timers, music controls, and meeting information.

CheckNoise estimates aircraft noise at a U.S. address, including changes tied to runway direction, and offers on-site measurement studies.

Enter an aircraft identifier, dates, time zone, and ground locations to find nearby flight passes and download their altitudes as a CSV.

A free, phone-friendly set of tools for daily Buddhist practice, including a meditation timer, counters, prayers, a diary, and a practice-day calendar.

Seth is a free, open-source Mac app for viewing medical DICOM images, including CT, MRI, X-ray, ultrasound, and mammography.

Hydris presents a glasses-and-phone system for treatment-plant alerts, maps, guided rounds, and inspection records.

Enter a U.S. city to see how many days in a normal winter could support ice-dam formation, and how attic conditions change the estimate.

A free online guitar and bass tuner paired with a step-by-step instrument setup workflow and a downloadable PDF report.

Printlabels.top lays out address labels for common sheet formats and downloads them as print-ready PDFs.

A subscription app for wellsite calculations, well records, and job notes, designed for phones and computers.

An interactive Sun-and-Moon clock lets you change the date and time to explore lunar phases, sky positions, and upcoming events.

A searchable guide to independent Tokyo variety shops, with filters for the objects, styles, neighborhoods, and gifts you have in mind.

A guest-management tool for Nigerian weddings that handles WhatsApp invitations, family RSVPs, QR passes, seating, and check-in.

A free, offline Mac app that brings tasks, focus tools, clipboard history, notes, file utilities and more into the menu bar.

A browser-based tool for making 40C3 talk cards, posters, badges, announcements, logos, and other event visuals.

A searchable tracker of company policies for AI agents people send to shop, book, bank, and use other services.

A free test checks whether AI tools send a real-looking email address when a website asks for contact details.

A workspace for sizing costume and armor files, planning test prints, and decorating or building printable pieces.

A comparison guide for 52 AI red-teaming vendors and open-source tools, with a needs-based matcher for buyers.

A free calculator estimates what New York home-care aides should be paid under state wage, overtime, and 24-hour-shift rules.

A free French-language site that explains payslips and helps workers check pay, rights, and related calculations without sending their bulletin.

ClipIt presents wildlife photography as a game: photograph an animal, get an AI identification, and earn points based on rarity and behavior.

The browser-based tool turns an image into a crochet chart, row-by-row instructions, and a printable PDF.

A browser-based photo background remover that offers edge controls and exports transparent PNG or WebP files.

A paid tool that drafts prescription-coverage appeal letters around the denial reason, helps check deadlines, and provides a sending checklist.

Encoralia pairs local show listings with a song from each band, so listeners can preview a bill and make plans.

A Chinese-language interactive guide for exploring Bangkok venues, neighborhoods, transit, and trip ideas.

FIELDNOTES guides people through a phone-based photo session and helps them save a small collection of the moments.

氢航 presents a browser-based workbench for estimating hydrogen-powered quadcopter performance from mission goals, component choices, and engineering assumptions.

A live price and sales dashboard for the WoW Forever US PvP Horde auction house, with item histories, category trends, and a CSV download.

A multilingual transit tool for exploring Metrovalencia’s map, planning journeys, checking scheduled departures, and reading service alerts.

A free browser tool for converting Jw_cad drawings into DXF, with batch conversion, previews, measurement, and PDF export.

A public calendar of pinball tournaments and league nights across King County, alongside venue, player, and machine information.

A Japanese collection of browser-based tools for making printable keepsakes, event materials, fan-project assets, and practical records.

A fleet-weather service for commercial harvesters combines fine-grained forecasts, official marine warnings and a shared view of conditions along the Labrador coast.

A structured interview questionnaire helps shop staff reconstruct how a secondhand luxury sale unfolded, from the customer’s arrival to the deal outcome.

An AI LEGO builder that says it can turn a photo of loose bricks into build ideas, 3D instructions, and a parts list.

Mundil presents free, open-source apps for sharpening images of the Sun, planets and Moon, and deep-sky objects.

A search tool for finding publicly listed clinical studies whose age range includes children with a given cancer diagnosis.

A phone-based scanner reads NASP Bullseye and 3D scorecards, then helps families and school programs track archers’ scores over time.

An independent archive for browsing past paper Magic events, recorded matches, players, and submitted decklists.

A Seoul software studio presents eight free browser tools for async teams and independent builders, alongside four field guides priced at $5 each.

A Poké Hoops draft solver recommends which Pokémon to pick, where to play it, and when to reroll, alongside ratings, team-building tools, and game guides.

A browser tool for uploading artwork and previewing it on custom badges, acrylic goods, and paper products, with controls for materials, cuts, and lighting.

Plain-English guides and a browser verifier explain how to check provably fair gambling results using hashes, seeds, and HMAC.

A browser-based PDF tool for finding sensitive text, redacting it, and removing document metadata.

An open-source Windows file manager with tabs, dual panes, archive browsing, previews, and other File Explorer alternatives.

A bilingual suite for making game sound effects and music in the browser, with downloadable sounds and a local MCP server for AI coding agents.

A browser-based image tool for blurring, desaturating, and reducing reference images to notan studies, with controls for saving and comparing versions.

A state-specific guide breaks the post-wedding name-change process into six sequential, printable envelopes, each focused on one task.

SnowfallCheck estimates whether a town and driveway call for a shovel, a single-stage snowblower, or a two-stage machine.

A Thai-language calculator estimates rooftop-solar savings, payback time, and loan costs from household electricity use and a solar quote.

A note-taking app that arranges topics in a 2D hierarchy and lets you view their layers in 3D.

StockSense describes an open-source workflow for forecasting essential-medicine stockouts at primary health care facilities and planning resupply.

A Korean-language hub of practical apps, demos, training materials, and shared resources for social workers and social-welfare organizations.

A detailed sourdough reference follows one country loaf from starter to slice, with troubleshooting guidance and calculators.

Tessera uses a reference photo to build a location-based 3D scene where photographers can plan a recreation with camera and lens controls.

A browser-based map maker for coloring countries and subdivisions, adding labels and legends, and exporting PNG or SVG files.

An interactive map lets visitors explore Tbilisi’s buildings and places in a stylized 3D city.

WaderCast combines U.S. fishing forecasts with tide times, lake levels, license fees, and free-fishing dates.

A free Windows editor for building OMSI 2 maps, with tools for roads, junctions, terrain, bus routes, and object placement.

An interactive map uses birders’ checklists to show where different bird species are being reported across the US, by week and county.

A free browser metronome that syncs to YouTube videos, finds beats, and exports click tracks as WAV or MIDI.

An independent Houston and Harris County guide pairs crash-response reading with eight private workspaces for organizing records, insurance calls, repairs, and expenses.

NAS Salvage is a Windows app that scans a Synology NAS for recoverable files and lets owners save selected files to a PC or USB drive.

A digital khata for shops, wholesalers, distributors, and mills, with voice-drafted entries, stock tracking, account balances, and approval steps.

A São Paulo beta that combines public neighborhood data with a prospective owner's costs to assess a business location and suggest what to test.

A Chinese-language index that helps people find GitHub projects by describing what they want to do in everyday language.

Roughnote is a mobile field-capture tool for window-and-door reps, collecting measurements, photos, product choices, and conditions for each opening.

An interactive badminton predictor lets you place the shuttle and players on a singles court, then estimate a professional player’s next reply.

An interactive globe maps Catholic saints across a two-millennium timeline, with stories, journeys, and connections between people.

A browser-based workspace for drafting, checking, explaining, and testing Boolean logic in plain language, formulas, or diagrams.

A professional audio application for scanning, analyzing, marking, reporting on, and preparing large audio collections.

A Korean-language guide helps visitors match a traffic accident to an illustrated scenario and find fault-ratio guidance, accident-handling steps, and dispute information.

A free lookup and set of radio-planning tools for US amateur radio operators, drawing on FCC licensing data and other named public sources.

A keyword research and listing-audit tool for App Store developers, with free checks and a stated one-time price for lifetime access.

RawLab presents a free browser editor for RAW and other photos, with adjustment tools, presets, export options, and photography lessons.

A local review tool for inspecting and revising social posts and ad creative queued by automated jobs before they go out.

Celi is a travel-planning and dining assistant for finding celiac-aware places, organizing meals and activities, and handling restaurant communication.

A free browser-based tool that analyzes Amazon Ads search-term reports for Kindle authors, factoring in Kindle Unlimited reads and series read-through.

An iPhone app for tracking ships approaching the Blue Water Bridge between Port Huron and Sarnia.

A month-by-month guide to campground operating seasons, reservation release dates, and documented busy periods at six parks and destinations.

The tool turns payroll exports from QuickBooks, Gusto, ADP, or spreadsheets into a filled WH-347 PDF, with checks for arithmetic and formatting.

A transit app for the Greater São Paulo area that combines walking, bus, train, and metro routes with a suggested departure time.

A set of machining calculators for speeds and feeds, drill and tap sizes, threads, job costs, and other shop-floor calculations.

Upload a CAD image or export and Clearcoat Studio says it can render the same object as studio photography, preserving its camera angle and geometry.

ConnectMyDocket presents a weekday workflow for monitoring court dockets, organizing new filings, and turning relevant dates into calendar entries and tasks.

Upload an exported LINE, WhatsApp, or Telegram group chat and Detective Purlock turns it into a comedic investigation dossier.

A playful tool that scores pasted text for clichés, vague claims, and repetition, with an option to compare two texts.

FabuLux says its AI drafts a structural-steel model from a design set for a detailer to approve, then produces shop drawings, material lists, NC files, and IFC.

Guidelet is a macOS helper that answers questions about the app on screen and highlights the controls to use.

A browser-based workspace for organizing online-scam cases, linking people and accounts, preserving files as hashed evidence, and producing a PDF report.

A set of free browser-based calculators, converters and checklists for visitors and residents dealing with Japanese travel, taxes, permits and moving.

Localways presents a self-hosted sync and archive system for files, photos, contacts, messages, and other phone data, running over a home Wi-Fi network.

An unofficial set of Android apps for the BYD SEALION 7: a vehicle-screen launcher, a phone app, and a Galaxy Watch companion for vehicle controls and status.

A searchable site for comparing traffic counts across 42,813 Japanese road sections, by route and prefecture.

A browser-based PDF tool that removes marked text from a document’s content stream instead of merely covering it with a black box.

Mile Mapped turns run, ride, hike, race, or flight routes into customizable map posters.

PitchGenius presents a browser-based voice pitch-correction tool, with automatic tuning and a separate editor for adjusting individual notes.

A browser-based tool converts an image into printable, multi-layer paint stencils or SVG cut files.

A browser tool that analyzes drum recordings or videos for tempo changes, beat positions, hits, and timing variation.

A state-by-state research service tracking required water-infrastructure replacement programs, funding, advisers, and contracts.

A Ukrainian-language rhyme finder paired with a browser-based editor for poems and songs.

A personal storm-chasing project pairing field reports and tornado photography with maps and weather outlooks.

ShowInOne presents a desktop show-calling app for theatre, live events, concerts, and worship, with cue control and production paperwork in one place.

A score-first music studio that presents orchestral pieces through recorded instruments, animated notation, and printable sheet music.

An early-stage phone-and-glasses concept for blind and partially sighted pedestrians, designed to speak or vibrate when a hazard, crossing signal, or turn calls for attention.

A free, open-source home server for listening to audiobooks and reading ebooks you own, across phones and computers.

Paste an X post link or ID to see its timestamp in UTC, your local time, or another time zone.

zhol says it warns freight offices which of tomorrow’s loads may be affected by road bans, closures, strikes, or ferry stoppages, and what to do.

A browser-based collection of tools for converting, viewing, repairing, and making 3D-printable files, plus calculators for print cost and filament.

Accessible Pantry is an early-stage kitchen app for blind and low-vision cooks, with a hands-on demo of voice- and touch-based food tracking.

An iPhone paragliding instrument for cross-country and competition flights, with customizable flight screens, maps, task planning, thermal guidance, and IGC recording.

A Chrome extension that restores selecting, copying, right-clicking, and dragging on sites you choose.

A digital tab ledger for small office, school, and neighborhood shops: customers log what they take through a QR code, and the shopkeeper prepares WhatsApp collection messages.

A live dashboard compares USDT prices with official exchange rates across 65+ currencies and estimates the net result of a remittance round trip.

A free planner for late airport arrivals in the Alps and around nearby lakes, comparing car desks, buses, and transfers to get travelers to their first stay.

Āyuṣya describes a PV degradation and reliability model that follows components from cell to power plant and produces scorecards and reports for developers, investors, and bankers.

A remittance comparison site for checking what a recipient gets after fees and exchange-rate margins across routes between Europe, North America, Oceania, and West Africa.

A paid service for horse boarding barns that turns barn rules and schedules into a private page where boarders can look up answers.

Batchbloom presents a tool for comparing bakery batches by linking product photos and quality measurements with ingredient lots, recipes, and process settings.

An offline iOS app for practising short clinical phrases in patients’ languages and playing them aloud at the bedside.

A searchable library of Factorio blueprints for version 2.0 and Space Age, with an inspector for pasted blueprint strings.

BoloQuote presents a quoting tool for Canadian contractors that turns spoken job walkthroughs into English quotes, with client signing and invoicing.

A tool for Cambodian sellers to make Khmer-and-English invoice images with shop details and a payment QR, ready to send in a chat.

A browser-based tool for laying out illustrated picture books for Amazon KDP and checking print-file issues before upload.

A brickwork invoicing tool for pricing jobs, preparing PDFs, and sending invoices.

ChangLocal presents online calculators and document tools for Thai local-government construction and procurement work.

A Turkish-language workflow panel for gravestone and marble workshops, covering orders, family approvals, Mach3 files, payments, and installation tracking.

A Spanish-language catalog for comparing baby strollers by size, weight, folded volume, features, and recommended price.

CondoKokua is operations software for Hawaiʻi condominium associations, covering work orders, deadlines, violations, renovation approvals and amenity bookings.

A menu-bar Mac app that adds falling snow, drifting icicles, snowmen, and winter wallpapers to the desktop.

A worldwide cruise-weather tracker that translates wind and waves into expected passenger impact by ship size.

A free browser tool for recording yourself alongside a video and rendering both performances as one side-by-side duet.

DeleteBot scans a Discord server for a member’s messages and lets an administrator review the results before deleting them.

An iPhone period tracker that logs cycle details, estimates what may come next, and presents the information through a garden interface.

DiskSalvor presents a free Windows tool for recovering files from failing drives, with no account or file limits.

DraftVano lets users configure six kinds of DIY timber projects, preview the frame in 3D, and buy a printable plan with a cut list.

DroidDOS describes an Android command-line app for managing files across phone storage, USB drives, SD cards, and Google Drive.

A browser-based tool for cleaning artwork for direct-to-film printing, arranging designs on a print sheet, and exporting print-ready files.

An MCP server for looking up EU business obligations and pre-checking invoices, marketing messages, AI disclosures, and VAT IDs.

A free browser-based EQ lab uses real song previews and headphone correction to help listeners shape and compare settings.

A browser-based tool converts photos into editable cross-stitch patterns with DMC thread colours, skein counts, and printable PDF charts.

A searchable local restaurant guide for Columbus, Georgia, and neighboring Phenix City, Alabama, with open-now listings, late-night picks, neighborhood pages, and price indicators.

A Mac app that overlays translations on readable screen text and provides translated captions for Mac audio or microphone input.

An iPhone app that reads Bosch ECU labels, identifies matching units and tuning tools, and keeps workshop customers, vehicles, and jobs together.

A browser-based set of electrical installation calculators and references for UK electricians, with results that update as values are entered.

A browser-based tool drafts letters to credit bureaus, banks, and other companies after someone dies, with free print-at-home and paid certified-mail options.

A paid AI service that turns a novel chapter into a mixed audiobook scene with character voices, sound effects, music, and subtitles.

A phone-based workflow for Moroccan fire-safety companies to track equipment, schedule customer follow-ups, record signed visits, and manage quotes and training.

A free browser tool gives Roland P-6 owners a larger screen for viewing and adjusting the sampler’s granular controls.

A planned Mac Twitch client that combines followed channels in one feed, transcribes stream audio, and lets you replay audio from individual lines.

A free web app for browsing books, comics, magazines, puzzles, and a daily edition of blogs, then sending or downloading them for supported reading devices.

MouKa is a Mac app for transcribing and reviewing two-person conversations, with a workflow aimed at counseling practice, supervision, and research interviews.

Flowerbook turns daily step counts into collectible flowers, then places each one on a dated walking-journal page.

A free, open-source Mac app for organizing local ebooks, reading them, and sending them to Kindle, Kobo, or other USB e-readers.

A free guitar-learning page for exploring fretboard shapes, chords, scales and improvisation.

A convention directory pairs dates and hotel-block updates with flight-booking windows and optional email or Telegram reminders.

Dott is a Windows desktop tool for capturing screenshots, copied text, and notes, then organizing and connecting them for later use.

A free iPhone baby-name app for browsing names, reading their stories, and comparing picks with a partner.

A browser-based tool estimates middle or front split angles with a camera, while the accompanying app offers timed stretching sessions and progress tracking.

Zeff is a downloadable desktop app that brings mail, chats, tickets, calendars, tasks, and documents into one workspace.

A Mac disk-cleanup app that maps what is using space, explains folders, and sends selected items to the Trash.

gospodynie.app presents a browser-based program for Polish rural women’s associations to manage accounts, grant spending, membership dues, events, and paperwork.

A Mac app that prepares DJ music libraries for rekordbox and Pioneer decks.

It analyzes HTTP Archive files in the browser, showing request timings and likely problems, then helps redact sensitive values before export.

Heaude gives healthcare providers and counsel a shared workspace for tracking payer-audit allegations, claims, evidence, deadlines, and decisions.

A planned Korean hiking app pairs offline trail recording and summit check-ins with a growing-pine keepsake. Its launch page also lets hikers compare routes by distance, time, ascent, and steepest section.

A browser-based I Ching caster pairs a question with a six-toss reading and a library of all 64 hexagrams.

A browser-based flight simulator for planning routes and operating a virtual cockpit, with airport charts, weather settings, and avionics controls.

A browser tool for measuring image dimensions, file size, aspect ratio, DPI, and estimated print size from uploads, image links, or webpages.

The site offers tennis players an analysis of serve mechanics from a phone video, with prioritized fixes and drills.

A free, open-source desktop tool that maps document collections, surfaces possible coverage gaps, and lets users inspect evidence and record decisions.

Janus compares medicines at home with published prescribing-cascade patterns and prepares a cited note for a doctor.

Jazz Desk presents a browser-based studio for finding keyboard sounds, managing banks and SD cards, and recording musical ideas.

Jelly Ruler is a browser-based vector editor for making logos and icons, with tools to separate images into editable shapes and export SVG, PNG, and app icons.

A shared map-based planner for a two-person New York trip, with itinerary details, route playback, and export options.

A browser-based JSON toolkit for formatting, validating, comparing, and converting JSON, with a formatter designed to preserve key order and number notation.

JugurthaSoft presents EasyMaint, an open-source maintenance management system for industrial teams, alongside software projects for electrical planning and technical training.

Kanezu presents billing, stock, GST, customer accounts, and bookkeeping software for small businesses in India.

Private memorial pages for Filipino families, where relatives can add photos, stories, and voice messages through a shared link.

Stack lets users log bullion, coins, and jewelry purchases, then compare holdings with spot prices and explore planning tools.

A browser-based estimator reads SVG or DXF designs and estimates laser-machine time and job pricing.

A Korean-language archive for comparing kimchi products by listed ingredient origins and manufacturer information.

An independent reference for True commercial refrigerators, with model specifications, official manual links, energy estimates, and replacement-parts references.

KnowFlyZone presents a preflight checker that combines ten drone hazards into a risk score from 0 to 100.

KnownFlaws lets shoppers research vehicle complaints, recalls, service bulletins, repair costs, and trouble codes by make, model, and year, or look up a car by VIN.

Kolumi plays audiobooks, audio dramas, podcasts, and music from Audiobookshelf and Navidrome or other Subsonic servers.