Useful Tools

An iPhone tracker for POTS and dysautonomia that runs repeatable at-home stand tests, records symptoms and fluids, and exports appointment-ready data.

A free collection of browser-based utilities for instructional designers, covering course scoping, caption work, text cleanup, file inspection, and accessibility checks.

An offline-first mobile app for collecting phenotype scores, field notes, photos, harvest records, and centimeter-grade positions in tree-crop trials and orchards.

A free reference and license lookup for homeowners weighing mold inspections, remediation quotes, and cleanup decisions.

A Catalan weather service covering forecasts and observations for 4,250 places, from municipalities to smaller population centres.

An interactive maker for spinning optical illusions from logos, 3D models, mathematical forms, or adjustable parameters.

A Japanese browser chat service that pairs people anonymously for casual conversation, without registration or an app install.

A live index of songs playing across 1,217 radio stations in 80 countries, with station histories, charts, artists, and Spotify playlists.

A browser-based QR generator that hides pixel-art sprites inside the code’s error-correction budget.

A Mac meeting recorder that captures your microphone and system audio separately, then transcribes both on-device.

A browser-based audio editor for cutting, joining, cleaning, leveling, and converting recordings without uploading the files.

A Chrome extension that hides short-video shelves and algorithmic feeds across YouTube, Instagram, X, LinkedIn, and Reddit.

Inventory and purchasing software for research labs that combines stock records, booked protocol runs, supplier lead times, and compliance data.

A browser-based photo editor for covering faces, license plates, text, and other sensitive details without uploading the image.

A phone-pair checker that explains whether an iPhone-to-Android conversation used RCS, SMS, or MMS, and which features survived the connection.

An automated opponent-scouting service for European basketball leagues that big analytics tools often skip.

A privacy-first Chrome tool that records how your browsing day unfolds without sending the record off your machine.

A public-data tool that recommends which car to board on Seoul Metro Line 2 for the best chance of getting a seat.

A card database and deck-building tool designed specifically for Magic: The Gathering’s Two-Headed Giant format.

A Southwest Florida research tool connects property-distress signals to parcels, official records, timestamps, and source artifacts.

Akhirah is an iPhone companion for Quran reading, prayer times, Qibla direction, sourced questions, and private reflection.

A browser-based collection of printable generators for calendars, graph paper, planners, flashcards, cards, and other sheets at true paper size.

A private-beta workflow tool that uses residential appraisers’ MLS exports to derive market-condition and comparable-property adjustments, then produces support exhibits and workfile packages.

A replayable Robinhood Chain experiment that stress-tests a contract’s public state against simulated sniper, whale, creator, liquidity, narrative, and infrastructure shocks.

A proposed wrist-worn sensor records skin emissions alongside heart rate, environmental data, and location context.

A one-click AI tool that enhances underwater photos by improving colour, light, clarity, haze, and low-light detail.

A practical Mumbai wedding-shopping guide covering markets, stores, categories, ratings, timing, addresses, hours, and directions.

A Mumbai café directory scores places on Wi-Fi, power, seating, noise, and the practical question of whether staff will let you stay.

A native, GPU-accelerated, layer-based image editor for Linux, offered as a single binary with no subscription.

A Brazilian legal-publication workflow that reads the DJEN and sends lawyers the literal act, client match, and operative deadline through WhatsApp.

A Colombian bioclimatic architecture platform turns a project’s location into climate data, passive-design strategies, and energy-performance analysis.

ChargeLog records Android and Wear OS charging sessions, including power curves, charging phases, temperature, and physical context.

Paste an email, DM, or text into Hunch for a plain-language scam warning based on locally processed evidence.

A free warfarin and INR tracker for iPhone and Android, with dose reminders, blood-test planning, trend tracking, and time-in-range calculations.

An open French property-data suite for estimating homes and commercial premises from recorded transactions.

An open French property valuation toolkit built on recorded DGFiP sales, with an estimator, street-level transaction map, market observatory, and ten professional calculators.

A Windows 10/11 diagnostic and tuning tool for Counter-Strike 2 that identifies likely performance bottlenecks, offers 30 reversible adjustments, and measures CPU or GPU limits.

Decadecut estimates a garment’s period from construction details such as lapels, pleats, buttons, sleeveheads, waist shaping, hems, and flies.

A nonprofit project building a consent-based registry to help veterinary transplant teams find compatible canine stem-cell donors.

An offline-first race platform for Tactical Biathlon and Run & Gun events, covering registration, payments, course timing, scoring, and published results.

DockCount photographs packing slips, matches them against purchase orders, and records shortages, damage, overages, and unexpected items.

A Chinese-language platform tracking PhD jobs, postdoctoral positions, university talks, research-institute openings, and talent policies across Jiangsu.

Doirado estimates what used music equipment actually sells for across European marketplaces, then surfaces live listings priced below that market figure.

Domestic is a free, open-source household tool for fixed chore rotations, AI-assisted receipt splitting, and settling shared expenses.

A free offline calculator for dressage tests that turns movement marks, coefficients, collectives, and errors of course into a percentage.

A free offline calculator for dressage scores across 586 tests from 24 federations and organisers.

A macOS menu-bar utility that blacks out awake displays while work continues, then glows teal when an AI coding agent needs an answer.

A wrist-worn instrument records skin emissions alongside heart rate and environmental data, inviting 1,000 people to contribute opt-in readings to an open dataset.

A public dashboard showing live temperature and flow readings for 16 named New York waters, alongside historical gauge context and stocking data.

A browser-based freight calculator that handles multiple pallets, pallet-aware dimensions, density classes, and class breakpoints.

An offline-first race-management platform for tactical biathlon and run-and-gun events.

Free browser-based tools diagnose GEDCOM upload failures and extract smaller, usable family-tree files.

An offline Windows app that lets people search personal photo libraries with natural language, faces, places, moods, duplicates, and text found inside images.

An offline irrigation controller that waters according to soil thirst, weather, and bed-level conditions rather than a fixed timer.

A repo-to-market validation service that tests a working app with landing pages, paid traffic, and real payment data.

Upload a delivery checkout screenshot and get a breakdown of fees, hidden markups, and the likely price of the same items outside the app.

A period-tracking app that turns cycle logs, symptoms, and voice notes into private, conversational guidance.

A six-part toolkit for EVE Online trading, hauling, industry, blueprint pricing, item search, and wallet monitoring using live market data.

A machine-local research notebook that turns PDFs, web pages, and notes into searchable, cited answers.

A browser-local tool that scrambles an image’s pixels and reverses the process with one click.

A browser-based converter that moves between JSON and TOON, counts tokens across several model tokenizers, and compares the result with minified JSON.

A small suite of focused tools for Google Workspace and Windows, including document cleanup, paragraph sorting, and a Gmail bridge for legacy Windows applications.

A browser configurator for designing cabinets and generating drawings, panel layouts, cut lists, and hardware lists.

A Chrome side-panel tool that analyzes Go positions, recommends candidate moves, and lets you play full games against KataGo.

A macOS utility that turns Claude Code and Codex sessions into a floating column of status lamps.

A nine-word dictionary for the botanical terms people can pronounce but cannot reliably spell after hearing them aloud.

A LiDAR-based tool that helps hobbyists and independent researchers locate possible archaeological and historical structures.

Loam finds recurring problems in public complaints, scores the evidence, and helps founders decide what to investigate before building.

A free Windows desktop tool helps speech therapists draft assessment reports, select tests, and store patient data locally.

A public SPF, DKIM, and DMARC checker that grades domains, explains the highest-impact fixes, and offers daily monitoring.

A no-account visual designer that creates, imports, previews, and exports ZPL labels for Zebra printers.

A read-only assistant that sorts school WhatsApp groups and Gmail into the small list of tasks, dates, and updates that need a parent.

Mandarima drafts M&A profiles, comparable-company analyses, and preliminary valuations from SEC EDGAR and Companies House filings.

A live market visualizer that renders bids, asks, trades, and liquidations as armies fighting across a pixel-art battlefield.

A macOS utility that uses the MacBook notch to suggest and send memes, GIFs, reactions, and stickers while you type.

A free set of browser-based tools for converting, inspecting, resizing, and exporting 3D files, plus turning images and SVGs into STL reliefs.

A free Morse toolkit that translates text, decodes signals, plays audio, flashes light, and offers training, games, simulations, and reference material.

A Windows tray app overlays customizable visual anchors—such as a vignette, focus dot, horizon bar, or virtual nose—on games to help reduce motion sickness.

A free collection of unit-aware engineering calculators for PMSM and BLDC motor-control work.

A toolbox of 100 live calculators for engine building, boost, fuel, gearing, chassis setup, aerodynamics, and race strategy.

A self-hosted Windows media server that streams films and shows from your own PC to browsers, phones, and TVs.

Paste a Chinese name to get the Japanese forms used for bookings, pronunciation, and hotel interactions.

A browser-based toolbox for converting, compressing, editing, and inspecting PDFs, images, video, audio, text, code, and more on your device.

A no-download, no-account collaborative music room with four synths, two drum machines, a singing robot, and a shared mixer.

Our Note gives families one shared daily page for check-ins, memories, plans, birthdays, polls, photos, and short voice notes.

A connected set of free bike calculators covering tire pressure, gearing, fit, speed, climbing, training, fuel, and everyday load questions.

A browser-based tool for SAP SuccessFactors Recruiting consultants to inspect, edit, validate, compare, and export Job Requisition Data Model XML.

Persist.click sells a pay-once namespace with 100 MB of permanent storage for files, albums, documents, or complete websites.

A phonetic dictionary for the flower-anatomy terms people hear incorrectly before they ever spell them.

A DICOM de-identification tool that removes patient identifiers before off-site work and restores them when results return.

A tomato-growing tool that combines leaf photos with temperature, humidity, and leaf-wetness data to diagnose disease and rank the next actions.

Pocket Systems presents a compact messaging device with an e-ink display, physical QWERTY keyboard, push-to-talk wheel, and no app store.

A browser-based suite for generating custom paper, worksheets, planners, puzzles, classroom materials, and music sheets as printable PDFs.

An offline-first race timing and results platform for Tactical Biathlon and Run & Gun events.

An offline-first race-timing and results platform built for Tactical Biathlon and Run & Gun events.

Una herramienta argentina convierte imágenes satelitales y datos meteorológicos en una recomendación concreta para decidir si conviene recorrer un lote.

An AI interviewer uses a pasted job description or LinkedIn link to run an out-loud mock interview, interrupt rambling, and produce a scorecard.

A public-beta diagnostic assistant that uses photos, videos, fault codes, descriptions, and test results to narrow equipment problems before recommending a part.

A free roof-replacement estimator that turns an address—or a manually entered footprint and pitch—into a line-by-line cost range.

A local macOS utility that OCRs, indexes, organizes, and searches screenshots without uploading them.

Free Windows software for projecting Bible passages offline, with two translations, touch-friendly verse selection, and separate NDI streaming output.

A Shopify app for changing storefront text, showing or hiding sections, and reverting those changes on a schedule.

A searchable library of 4,629 AI-generated and procedurally synthesized sound effects, with downloads, hotlinking, a JSON API, and an on-demand generator.

A browser-based converter for camera RAW, HEIC, and WebP files, producing JPG, PNG, or WebP without uploading the originals.

An offline-first notes app for fast capture, live dictation, daily pages, and importing Notion or Obsidian vaults.

An event-photo tool that lets guests scan a code, take a limited number of browser-based shots, and send them to the host’s Google Photos library.

A structured reference for table-tennis rubbers and blades, with measured characteristics, community ratings, and side-by-side comparisons.

An open-source macOS and Windows tracker that records Magic: The Gathering Arena games locally and turns them into live dashboards, deck analytics, and matchup history.

An Outlook add-in that sends individualized emails with the correct attachment for each recipient.

A voice agent calls overdue accounts in a business's name, records the conversation, and writes the outcome back onto the invoice.

Mechanism-first guides and calculators for diagnosing and tuning desktop FDM 3D prints.

A fantasy-football dashboard that connects Sleeper or ESPN leagues and produces Tuesday recaps, live scoring, draft grades, waiver analysis, and trade tools.

A playful catalog of in-browser tools for compressing, resizing, converting, and reshaping files without uploading them.

A family app pairs a two-minute toothbrushing timer with a personalized bedtime adventure that continues from night to night.

A collection of nine calculators and explainers for booking windows, refunds, TDR deadlines, waitlists, Tatkal, child fares, fines, and luggage.

MiniPACS is a self-hosted medical image archive for independent imaging clinics, paired with Vendo, a referral portal for booking and tracking patients.

A closing-validation and boarding system for community banks, starting with Jack Henry institutions.

A historical purchasing-power calculator that compares money across years and currencies using consumer-price data.

A free local app for BLE FTMS smart trainers, combining ERG workouts with GPX-based mountain-route simulation.

WheelMates tracks Steam achievement unlock rates, platform announcements, price, reviews, and launch details for the co-op game Dark Light.

A browser-based instrument-learning app that reads sheet music and places fingering instructions beneath the notes.

A browser-based workspace for editing, organizing, converting, and exporting lorebooks, character cards, prompts, and presets.

An iPhone and iPad app for mold assessors that uses LiDAR floor plans to place findings, moisture readings, samples, and photos in a report.

A Catalan weather service covering forecasts and observations for 4,250 places, including small population centres most weather sites omit.

A crowdsourced UK summer-internship tracker showing newly detected openings and recent interview, assessment, and application updates.

A searchable index of AI Engineer talks with summaries, timestamps, speakers, topics, conferences, and curated viewing packs.

A garment-bleeding estimator that uses photos of a care label and clothing to recommend washing alone, with darks, or usually safe.

A BHS-language platform for choosing, comparing, and building PCs around budgets in Bosnia and Herzegovina, Croatia, and Serbia.

A bookmark intelligence tool that converts saved TikToks, reels, threads, articles, and other media into searchable text and answers questions with source receipts.

A Japanese, source-labeled database of overseas B2B marketing cases, searchable by objective, channel, tactic, company type, theme, or keyword.

A free online tool that tests subscription nodes for availability, latency, download speed, streaming and AI-service access, exit IP details, and landing-IP risk.

A backlink and AI-mention grader that turns Search Console and GA4 data into four verdicts: counted, weak, vanity, or dead.

A committee-management product that brings welfare, finances, subscriptions, sponsorship, compliance, coaching, and recruitment records into one place for volunteer-run adult clubs.

Paste a news link or article text and Debrief marks established claims, framing, interests, omissions, counterarguments, and what could change the assessment.

A coastal directory of marina fuel availability, pump notes, prices, hours, and dock phone numbers.

A no-app golf coordination tool for live video, hole-by-hole scoring, highlights, tournaments, and season-long leagues.

A free, no-account genealogy tool for building, editing, and exporting family trees, including blended families, adoption, half-siblings, and multiple unions.

A fan-built tool that turns an IRONMAN bib number into a finish-line video, finisher card, or story-ready export.

A native macOS app for signing and verifying PDFs with Costa Rica’s digital signature cards.

A GCC-focused workspace that audits Noon and Amazon.sa exports for unresolved inventory, fee, and reimbursement discrepancies.

A service that watches substitute-teaching boards, matches jobs to your preferences, and either books them or texts you for a decision.

A set of free browser tools for making food labels, barcodes, and product paperwork.

A community messaging service that sends one group message as app notifications to smartphones and plain SMS to flip and filtered phones.

A daily NCSU event board that filters campus happenings by freebies, date, and event type.

A source-checked HVAC reference that maps error codes and symptoms to manufacturer-specific explanations and safety-bounded troubleshooting.

A privacy-first travel ledger for tracking Schengen stays, country-presence thresholds, and the dates behind each calculation.

A daily answer archive for Krillion’s seven-prompt dives, with thousands of responses sorted by rarity.

MACEQ routes and reshapes audio from individual Mac apps, with per-app EQ, compression, presets, and output control.

A Colombian property-management ERP that separates rent collected on behalf of owners from the commission an inmobiliaria actually earns.

A comparison tool for confocal and fluorescence research microscopes from 13 manufacturers, with specifications normalized against official source material.

A free French word game asks players to find a hidden word by following semantic temperature clues rather than matching letters.

A Windows utility that launches Microsoft Flight Simulator, companion apps, webpages, and commands in sequence, then reacts to simulator and desktop events.

Muster is incident-command software for volunteer organizations running events, with rosters, posts, communications plans, logs, and after-action paperwork.

A Japanese machining service lets visitors request a rough NC-lathe estimate from a 2D PDF, material, quantity, and desired deadline.

A browser-based tool that rebuilds FDA Nutrition Facts labels to fit specific packaging dimensions.

A browser-based toolkit for viewing, converting, editing, inspecting, and generating PDF, Word, Excel, PowerPoint, image, and data files.

A release tracker that compares new Steam games with nearby, similarly priced cohorts to find unusually fast review growth.

An Android medicine reminder that uses the alarm sound for doses, repeats unanswered reminders on a per-medicine schedule, and stops when the final follow-up is reached.

A searchable guide to concerts, markets, matches, fêtes, films, classes, and other things happening across Bermuda.

Planoptis is a plain-text planning format that combines standing projects, monthly plans, and daily logs in one indentation-folded file.

A searchable gallery of 418 Displate limited editions with reported eBay resale history, prices, edition sizes, and returns against retail.

A browser-based language-learning tool that resamples reference speech to match your pitch across 41 languages, then scores your spoken attempt.

A browser-based protractor for measuring angles on screens, diagrams, and local photos.

A race-planning tool that derives pacing, fuelling, cut-off margins, and five-bag packing lists from a specific course and goal time.

A California-focused compliance platform for firearms dealers, combining electronic Form 4473, an append-only A&D bound book, DROS tracking, and ATF inspection tools.

A browser-based transcription tool that turns audio and video into notes, chapters, summaries, and TXT, SRT, or Markdown exports.

A file-driven benefits workflow that screens renewal rates, structures compensation schedules, and surfaces possible coverage paths before formal quoting.

A browser-based tool that resizes photos to custom print dimensions, preserves a chosen focal point, and exports files at 300 DPI.

A free browser-based checker that shows what an applicant-tracking-system parser extracts from a PDF or DOCX resume.

A Windows app that turns cabinet parts into board layouts, cutting lists, priced invoices, and shop-ready PDFs.

A one-time-purchase planning workspace for guest lists, RSVPs, budgets, vendors, tasks, timelines, and event pages across Jewish celebrations.

A face-search gallery tool lets wedding and event guests scan a QR code, submit a selfie, and find their own photos without downloading an app.

A Chrome extension that turns screen regions, images, and pasted screenshots into copyable text on the user's own machine.

An Android beta that removes silences and retakes, reframes the speaker, adds word-timed captions, and assembles a finished video from a talking-head recording.

A free browser-based tool that translates English .srt and .vtt subtitle files into colloquial Sinhala, with side-by-side review and export.

A Lebanese price-comparison tool tracks laptops, components, phones, and other hardware across local computer shops.

A private-pilot service where couples separately answer 48 questions, receive individual and combined reports, then write and maintain a shared relationship agreement.

A multilingual safety-talk system lets crews read a talk, sign from their own phones, and export a timestamped audit PDF.

An iPhone utility that converts ordinary videos into orientation-aware clips with one local tap.

A Premier League decision suite for valuing players, finding statistical profiles, reading matches, and planning transfer scenarios.

A shared golf-trip board for live scores, side-bets, fines, and seven match formats, priced at £10 for the whole group.

A job-costing tool for machine shops that calculates what each part costs and what to charge.

Aviation logistics calculator that estimates how many AKE, PAG, or PMP units a mixed shipment needs.

A home and yard maintenance planner that uses regional soil-temperature readings to time seasonal jobs and calculate material quantities.

A local-first Chrome new-tab workspace for writing Markdown, clipping web research, tracking daily priorities, and optionally syncing notes to an Obsidian vault.

A macOS menu bar app that displays synced lyrics over the lock screen while Spotify or Apple Music plays.

A browser-based PAYE checker that reconstructs UK tax years from an HMRC income-tax history page and compares what you owed with what payroll deducted.

It screens federal, Texas, and California cleaning and grounds contracts against a contractor’s eligibility, geography, capacity, and preparation time.

WorthTheDrive calculates the real profit, maximum buy price, and break-even point for vehicle deals.

A calendar-connected briefing service that emails Southwest pilots the weather, events, and recommendations for each layover.

A free, in-browser calculator that combines declared value, HTS code, origin, destination, and transport mode to estimate U.S. duties and per-unit landed cost.

A Korean-language workflow assistant for Naver Smart Store sellers, bringing orders, products, customer service, shipping, settlements, and statistics into one widget-based workspace.

A small desktop and mobile screen color picker that copies HEX and RGB values from anything visible on screen.

A free Chrome and Firefox extension for customizing WhatsApp Web with themes, backgrounds, fonts, sounds, and sidebar controls.

A pay-per-gallery delivery service for photographers, with private links, optional PINs, client downloads without signup, and pricing from $2.99 per gallery.

A budget-pacing tool that learns how individual Google Ads campaigns spend through the day and adjusts daily budgets accordingly.

A Spanish-language guide for planning a February 2027 annular-eclipse trip around viewing conditions, lodging, mobility, and backup locations.

A Windows desktop tool that reconciles fulfillment invoices with contracted rates and operational exports.

A Chinese mahjong learning site pairing short tutorial videos and printable regional rules PDFs with a browser table against three bot opponents.

A haptic time-awareness companion for bullet chess that turns dwindling clock time into pulses, taps, and escalating urgency.

A phone-based vehicle-damage estimator that turns panel photos into a repair range, then collects offers from nearby repair shops.

A browser-based editor that detects likely fields in PDF and DOCX forms, lets you review them, and exports standard fillable PDFs.