Useful Tools

An iPhone camera app that lets you change a photo’s film emulsion after the shot, while keeping the original negative on the device.

An iPhone cookbook that imports recipes from links, photos, PDFs, reels, and handwritten pages, then turns them into a hands-free cooking mode.

A research site offering browser-based calculators for estimating correlation energies in computational chemistry.

A browser-based tool for blocking actors, placing cameras, planning lighting, and exporting readable PDF plots for film crews.

A browser-based perspective toolkit for artists, with camera-modelled grids, image correction, construction aids, and transparent PNG or SVG exports.

An interactive archive of 24,363 American baby names, charted year by year from 1880 through 2025.

A caregiver tool that texts dose reminders, records TAKEN or SKIP replies, and alerts someone when a dose goes unconfirmed.

A darts league platform for finding nearby teams, scoring X01 and Cricket matches, tracking player statistics, and running seasons without the spreadsheet.

A desktop clock and timestamped note-taking tool for live broadcasts, events, rehearsals, and UX research.

A Chrome extension that translates, simplifies, experiments on, or reads web pages aloud without making you leave the original page.

An offline workbench that turns microplate-reader exports into traceable assay results, including plate layouts, curve fits, QC verdicts, and reports.

A free, offline Bible research app with 18 parallel texts, tagged Greek and Hebrew, lexicons, concordances, cross-references, maps, timelines, and 59 historical and theological works.

A free, local-first reading companion that tests fonts, spacing, focus modes, and read-aloud settings across web pages and PDFs.

A match-analysis tool for league teams that turns uploaded game demos into player stats, team patterns, match reports, and flagged replay moments.

An offline iPhone map for navigating camps, hills, washes, and landmarks across California's Imperial Sand Dunes.

An iPhone and iPad app that scans grocery labels, tracks freshness, and suggests dinners from food already on the shelf.

A model-aware support tool for diagnosing problems with electronics, appliances, HVAC systems, water heaters, generators, and home networks.

A free collection of in-browser utilities for cleaning photos, checking cameras, reading QR codes, and inspecting what websites can see.

A detailed STAR WARS Zero Company database for planning operator builds, comparing squads, solving choices, calculating combat, and tracking achievements.

A free planner that turns an LED wall specification into power, rigging, data, weight, and truck-pack requirements.

A Chrome side panel that ranks ads in the public Meta and Google ad libraries by how long they have been running.

Offline Mac software that stacks, calibrates, aligns, colour-corrects, and exports astrophotographs from telescope, camera, and planetary-video files.

An offline fishing app that scores spots across Ontario lakes for a species and the day’s conditions, then explains its ranking.

An interview-practice tool that cuts sourced interview rounds into short, follow-up-driven exercises for walks, commutes, or other brief sessions.

A browser-based tool turns text-based bank-statement PDFs into CSV without sending the file to a server.

A Mac app transcribes Zoom, Meet, and Teams calls, translates the other speaker live, and drafts replies grounded in documents on your computer.

A written consulting-style case interview that recomputes every number against a fixed answer key, then delivers a detailed arithmetic and reasoning report.

An iPhone calorie tracker that combines exact food entries with editable estimates for uncertain meals.

A browser-based 1D cutting optimizer for bars, profiles, and stock lengths, with kerf, mixed inventory, and end trim accounted for.

A browser-based tool that saves Bluesky post videos as MP4 files and images at their uploaded size.

Broomstack is field-service software for cleaning companies, bringing scheduling, crew coordination, quotes, agreements, invoices, payroll, and client updates into one system.

Drop in an image, video, audio file, PDF, or C2PA sidecar to inspect its cryptographically signed Content Credentials.

A Southern California reference map that quotes official marine-protected-area regulations and answers whether breath-hold divers may take anything there.

An iPhone and Apple Watch diary for logging vertigo episodes, recording weather conditions, and preparing clinician-readable reports.

A food-recall checker that reads a package’s lot code, UPC, dates, and other printed details to assess whether that specific item is affected.

A data-driven tool for checking typical rental-car prices across 395 airports and judging whether a quoted rate looks fair.

Paste a Portuguese property listing and CasaAudit checks its price, history, land-use context, flood risk, costs, and other buyer-side signals.

Certistate crawls a website for WCAG 2.2 accessibility failures and produces a dated, citable Statement instead of a single compliance score.

A Korean housing-application calculator that checks eligibility and possible financing together.

A Japanese web toolbox for turning everyday frictions into quick calculations, conversions, document tasks, image handling, translation, and file transfers.

A model-by-model guide to what can stay, change, or remain unresolved when an R-410A system moves toward R-454B equipment.

A public leaderboard for real-world pinball scores, ranked by machine, venue, city, and worldwide standing.

An iPhone, iPad, and Apple Watch app that turns recipe pages, PDFs, and shared links into voice-guided cooking instructions.

A boating app for shared alerts, boat monitoring, float plans, and year-round communication among dock neighbors.

An Apple-device bill and subscription planner that sends reminders, tracks renewal costs, and shows what is safe to spend before payday.

An open-source, self-hostable form builder that sends submissions to CRMs, warehouses, or webhooks and tracks what happens after the form is filled.

A free EVE Online utility suite for market prices, cargo appraisal, station-margin hunting, route danger checks, live kill intel, and pasted D-Scan analysis.

A public-beta electronic flight bag for iPhone and iPad, with offline charts, synthetic vision, weather, traffic, and aircraft profiles.

A proposed family dashboard gathers schedules, reminders, school updates, weather, routines, birthdays, and encouragement in a phone-free display.

A free, unofficial toolkit for browsing cards, building legal crews, tracking a collection, arranging trades, reading rules, and playtesting Cyberpunk TCG decks.

A traceability system for small-batch food manufacturers and co-packers that connects ingredient lots, recipes, batches, packaged units, and clients.

Donzo blocks short-form video feeds inside Instagram, Facebook, YouTube, Snapchat, TikTok, X, and Reddit while leaving the rest of each app usable.

A phone-based tailoring tool turns two photographs into a bilingual measurement slip, with tailoring ease added for the chosen fit.

A free planner that turns an LED wall description into power, data, rigging, weight, and truck-pack calculations.

An iOS keyboard translates messages as you write, then turns your real conversations into personalized study material.

A free NBA trade checker that tests hypothetical deals against salary-matching, apron, exception, and roster rules.

A cross-platform flight-route globe that rotates freely over the poles and measures every leg of a journey.

A Turkish personal archive for storing photos, videos, audio, and writing, with optional future-dated locks.

A room-by-room heating calculator that estimates building heat loss in watts, kilowatts, and BTU/hr.

A free, privacy-conscious decision tool that helps people with plantar heel pain assess safety, identify their stage, understand treatment roles, and begin a no-cost plan.

A Haarlem-based musician sells three focused audio plugins for mixing, chord generation, and tracking production time.

A compliance system for care providers that checks records against policies and maps them to assessment frameworks.

A tap-to-share business card that collects a contact’s details and sends a multilingual follow-up within minutes.

HourBuys compares the cost of everyday life across 77 cities by converting local prices into hours earned at the city’s stated net wage.

A French-language hub for finding GTA roleplay servers, preparing whitelist applications, building characters, and learning the vocabulary of FiveM roleplay.

A free collection of browser tools for viewing, editing, validating, repairing, querying, comparing, and converting JSON.

A DC and Montgomery County guide that selects three nearby things to do with a child, matched to age and checked for opening times and cost.

A Kenyan regenerative-farm design service that maps landform and water before placing dams, swales, channels, crops, and other works.

A browser-based PDF converter for Word, Markdown, images, and OCR, with files processed locally rather than uploaded.

A free audit compares Texas electricity offers against your actual meter history instead of the standard 1,000-kWh headline.

An Android app that blocks selected apps until you pause for a short prayer, with an offline Polish prayer book.

An open-source creative workspace combines an infinite canvas, media library, multitrack editor, AI agent, and reusable workflows.

An interactive Commander playtest companion that runs bracket-aware opponents, response windows, combat pressure, and game-state counters.

A searchable catalogue for identifying industrial control and test-equipment parts from the numbers printed on their plates.

A Korean clinical prototype that organizes 48-hour antibiotic reassessments into a daily review queue.

An AI-assisted tattoo training and studio system that combines equipment-specific lessons, stencil design, printer workflows, scored practice, and progress tracking.

A darts league platform for finding nearby teams, scoring matches, tracking player statistics, and managing rosters, fixtures, venues, and seasons.

A Japanese crowd-forecasting guide for Odaiba, Ariake, Aomi, and nearby venues, with event schedules, hourly congestion estimates, and parking guidance.

A public-catalog conjunction monitor that screens satellite trajectories for close approaches and explains the resulting collision-risk labels.

A French marathon-pacing analysis and browser calculator built from 13,532 finishers of the Marathon de La Rochelle.

A live tracker that ranks Home Depot items reported to ring up for one cent.

A browser tool turns photos into printable Perler bead patterns with adjustable size, color limits, cleanup, and a built-in bead list.

A native Apple emulator for Game Boy, Game Boy Color, Game Boy Advance and Nintendo DS games, with controller support, AirPlay play, cross-device saves and online link-cable play.

A browser-based system and implementation service for packaging manufacturers preparing PPWR technical documentation, EU declarations of conformity, and product cards.

A private idea-validation tool researches existing competitors, pricing, market conditions, and possible room for a new product.

This iPhone-focused tool converts one room video into a timestamped home inventory, moving manifest, or rental-handover report.

A free Windows utility that previews files from File Explorer with a single press of the Spacebar.

An email-to-action tool that extracts subscriptions, deliveries, obligations, and opportunities into structured rows sorted by what happens next.

A public reputation profile for people who buy, sell, and trade cards, built from mutually confirmed transactions.

Resu helps people build or revise a CV through WhatsApp, using typed answers, voice notes, or an existing job advert.

A browser-based planner that turns an LED wall specification into panel counts, power and data requirements, rigging details, weight, cases, and a load-in pack list.

Fineprint turns privacy policies, terms pages, and cookie notices into quoted explanations of what you accept and what it may cost you.

A planning and alert tool for landscape and astro photographers that combines weather, astronomy, and aurora forecasts for a specific location.

SliSearch searches 663,293 models across 20 public 3D-model marketplaces, with filters for file type, price, category, licence, source, and recency.

A mapped reference to Southern California’s marine protected areas and the rules governing what a breath-hold diver may take there.

A camera-based music-learning application that turns Curwen hand signs into sung-scale degrees and playable instrument notes.

Spencer Clark’s free Obsidian plugin indexes downloaded Midjourney images, recovers their full prompts from PNG metadata, and lets you search, browse, and embed galleries offline.

A player-built Steal An Egg field guide with event timers, biome requirements, pet-income comparisons, route planning, and a private progress checklist.

A browser-based suite that converts STEP and STP CAD files into STL or OBJ, with batch processing, mesh checks, and 3D inspection.

A no-sign-up trading toolkit that calculates position size, explains market terms, and records what happened after the trade.

A phone-based subtitle reader for watching films on screens that lack subtitles.

SUTROS checks a website for security risks, broken pages, and outdated components, then explains the findings in plain English.

SweatCode converts focused computer work into Move Points, then recommends a walk, ride, run, or workout to clear the balance.

A toolbox-talk tool for small contractors: a foreman sends a five-minute safety topic, crew members sign on their phones, and the meeting becomes a printable, verifiable record.

A browser-based tool for temporary encrypted rooms, peer-to-peer file sharing, voice notes, calls, and screen sharing.

A creative host workspace that turns a cultural theme into an editable, multi-course dinner plan with recipes, pairings, music, guest needs, sourcing, and logistics.

A retirement-transition service for tradespeople that turns selected field expertise into desk-based assessments, reports, training, and advisory work.

A free research tool showing what 568 US ETFs hold, how funds overlap, and which securities contribute to a portfolio's exposure and risk.

Title Drift compares approved product titles and subtitles with the versions Amazon displays across up to 24 marketplaces.

A direct file-transfer tool that sends large files from one browser to another without an account, installation, or cloud copy.

An offline-first iOS and Android app for collecting phenotype scores, notes, photos, harvest records, and centimeter-grade positions in perennial crop trials.

A club-focused archive that uses photographs and AI to turn engraved trophy names into searchable, exportable winners records.

A mates-only movement club where people set daily goals, stake a few pounds, and split the pot according to who turns up.

WatchRank audits a YouTube video by observing its scenes, speech, text, branding, pacing, and calls to action, then scores its marketing performance.

WeatherX tracks hail, lightning, and heavy rain cell by cell, sending site-specific warnings and an all-clear signal before crews lose working time.

WeatherX tracks hail, lightning, and heavy-rain cells across Europe and the US, sending site-specific warnings and an all-clear to outdoor operations.

A private-well troubleshooting guide that maps stains, smells, scale, slime, corrosion, and pressure problems to tests and treatment classes.

Independent well-water guidance with calculators for test results, softener sizing, salt costs, pressure tanks, and shock chlorination.

A bilingual tracker compares Hong Kong shop asking prices for sealed Pokémon boxes with Japanese MSRP and secondary-market prices.

A privacy-first text workspace for counting words, converting case, checking readability, and cleaning or sorting text without uploads or accounts.

A focused audio tool that combines Suno, Udio, and other exported tracks into a level-matched mix with transitions, tracklists, chapters, and video output.

A free Android app for tracking films, series, and sprawling franchises episode by episode.

A Mac utility that turns one Mac into an external display for another over a single Thunderbolt cable.

A real-time lightning map that turns NOAA satellite detections into storm views, proximity alerts, and rewindable weather history.

A browser-based checker that tests PDFs against publishing requirements for Amazon KDP, Lulu, and IngramSpark.

A live electronic scoring tool for air rifle and pistol that connects existing targets to remote competitors, coaches, and spectators.

Teyks gives independent guitar teachers a short factual record of a student's practice week, covering days played, duration, takes, tempo, and the piece sections attempted.

A Korean-language collection of browser-based tools for resizing photos, assembling PDFs, renaming files, compressing images, and converting formats.

A model-level compatibility checker for robot-vacuum filters, brushes, batteries, bags, mop pads, docks, and other replacement parts.

A free text checker that assigns a 0–100 “slop score” and explains whether writing is worth reading.

A public forecasting system that assigns probabilities to questions about packages, repositories, companies, hiring, and fundraising, then scores the calls after outcomes arrive.

A live event tool that lets audiences submit questions, vote, or request songs from their phones, while a host moderates what reaches the big screen.

A private iPhone migraine tracker designed for recording attacks quickly and checking later whether medication helped.

A pre-launch neighborhood lost-and-found service designed to reconnect owners and finders without revealing either person’s identity.

A source-led lookup tool that turns printed battery codes into canonical families, dimensions, voltage, chemistry, and substitution context.

An offline bead-design tool for planning colors, patterns, stitch structure, and printable pattern sheets before buying materials.

A birding trip planner that combines hotspot discovery, collaborative itineraries, live field sessions, checklists, and life-list tracking.

An iOS calorie tracker that shows burned calories minus eaten calories on a diverging scale rather than a progress bar.

An interactive UFC analytics site that adjusts fighter ratings for opponent quality, recent form, schedule strength, and sample size.

Um teste gratuito cruza a rotina de uma pessoa com raças de cães e gatos para apontar combinações mais compatíveis.

A Swiss coparenting app records messages, custody arrangements, handovers, expenses, and documents in timestamped, exportable histories.

A source-verified database for comparing Indian credit cards, their rewards, and transfer partners.

A browser-based utility that copies CompanyCam project photos, documents, and checklists to Google Drive or a folder on your computer.

A consent-management tool that adapts its notice to a visitor’s location, blocks optional trackers until they answer, and stores an exportable record of the decision.

CueDuck gives each event a live board for what is happening now, what comes next, and what has changed.

A client-side browser tool that listens for ambient Bluetooth Low Energy signals and presents them as submarine-style radar contacts.

A Chrome extension that downloads full-resolution photos and videos from a parent’s Procare account to their computer.

A school operating system for independent schools, combining records, attendance, report cards, admissions, parent communications, tuition, and payments.

A free Mac utility that displays EXIF, IPTC, XMP, GPS, and cinema metadata beside Finder previews.

A free browser-based tool that splits one panoramic image into seamless carousel panels for Instagram, LinkedIn, TikTok, and other social feeds.

A menu-bar Mac app that tags files, proposes folders, cleans up clutter, and keeps every move reversible.

Afterglow organizes wedding photographs by guest, lets couples choose what each group can see, and offers permanent full-resolution access plus lab prints.

A macOS plugin for Adobe Premiere Pro that turns mixed audio into editable vocal, music, dialogue, and instrumental stems.

A LiDAR quoting workflow for epoxy and coatings contractors that measures irregular garage floors, previews materials in the homeowner’s space, and drafts the quote in Jobber.

A searchable directory of 1,392 Hawaiian names with meanings, pronunciation, gender labels, syllable counts, and word-by-word construction.

HeatPerStay turns pool volume, temperature rise, heater type, energy price, and booking details into a suggested guest fee.

A Chrome extension and browser demo that extracts text from screen regions locally, with table output that can be pasted into spreadsheets.

Inzira builds a personalized path from an investment idea to operating a business in Rwanda.

A Namibia-focused phone tool that reconciles jackpot-machine meters, cash boxes, owner shares, and operator payouts.

A baby-tracking app that turns feeds, naps, diapers, medicine, growth, and milestones into a shared timeline.

Hold a Pokémon card up to a webcam and looka identifies it, then compares sold listings with the cheapest current asking price.

A free browser-based library of construction and engineering calculators covering materials, geometry, MEP, energy, water, estimating, and structural design.

Mobile IC Checker identifies a phone memory chip from its printed code and returns its RAM, storage capacity, manufacturer, and chip type.

MTS converts TAP checklists into a prioritized transition workflow with assigned actions, decision points, timelines, and a live readiness score.

A free browser library of picture nonograms with a daily 10×10 puzzle, keyboard controls, saved progress, and 28 original puzzles.

Nearscreen sends an iPhone screen directly to a nearby Windows or macOS computer over Wi-Fi, without accounts or cloud relay.

A no-signup toolbox for merging PDFs, making invoices, editing images, creating letterheads, and handling other everyday business paperwork.

A cataloging tool that turns title-page photos into searchable records for collectors, antiquarian bookshops, and small libraries.

A document-processing tool for wholesalers and manufacturers that compares vendor purchase orders and invoices line by line.

A scheduling tool for defenses, talks, committee meetings, and other small academic events.

A free Japanese reference site covering pet health, husbandry, prevention, emergency care, and 2,650 case questions across 53 species.

An independent, multilingual field guide for PRAGMATA, with walkthroughs, character builds, maps, database records, updates, and local planning tools.

A free Japanese tool that compares buyback prices across retailers and helps resellers track inventory, sales, and margins.

A phone-first amateur-radio tool that helps newcomers find reachable repeaters, make a first contact, and gives clubs a mobile home for nets and member administration.

一套面向运动场馆的 SaaS，把羽毛球、篮球、网球、乒乓球和足球的订场、会员、支付、折扣与运营后台放进同一系统。

A German desktop app that reads invoices, receipts, and bank statements locally on macOS or Windows.

An Arabic, read-only tool for Salla stores that identifies confirmed and potential losses in orders, payments, inventory, and coupons.

An offline-first receipt tracker that scans receipts, extracts spending details, and exports the results to CSV, YNAB, or a spreadsheet.

A Korean-language toolkit for checking pixels, keyboards, mice, webcams, microphones, speakers, refresh rates, and touchscreens without installing software.

A browser-based tool that recognizes physical Riftbound trading cards through a webcam and names them in real time.

A Chrome and Firefox extension that flags posts, images, and comments that look AI-made, then explains the evidence behind each flag.

A macOS EQ plugin that replaces intimidating frequency numbers with labels such as Boomy, Muddy, Harsh, and Present.

An offline-capable gear checklist for touring theatre and dance crews, spanning load-in, venue changes, border crossings, and load-out.

A platform for volunteer-run swim clubs that combines dues, renewals, waitlists, communications, camps, lap reservations, payments, and club administration.

A monitoring tool for app names and trademarks across app stores, official registers, and the open web.

An iPhone prayer companion that compares committee-set iqamah times across nearby masjids.

A collection of free tools for compressing, converting, resizing, trimming, rotating, and extracting audio from video and image files.

Tourbook puts artist rosters, show routing, financials, promoter updates, and read-only artist views into one tour-management console.

A free Chrome extension that simulates Solana memecoin trades inside Terminal and Axiom using live prices, fees, slippage, and zero real SOL.

An invitation-only dashboard that reads premium credit-card terms and tells members which benefits, balances, transfers, or expiry dates deserve attention next.

A Solana token post-mortem tool that reconstructs wallets, trades, liquidity, and exits after trading activity goes silent.

A multilingual care-operations platform for medication records, care documentation, rosters, catering and alerts across European providers.

An indoor-cycling service uses Google Street View roads as routes, with speed controlled by a connected smart trainer.

A Ukrainian family-finance app that analyzes monobank spending, cashback categories, subscriptions, daily limits, and selected family-account signals.

Wakeletics is an iPhone alarm that requires camera-verified push-ups or squats before it lets you start the day.

A focused retrofit guide and calculator suite for 1900–1975 brick terraced homes, covering heat pumps, insulation, draught-proofing, and small-scale solar.

A Bluetooth beacon system for finding a parked car, bicycle, boat, or other tagged object without pretending to know its exact direction.

A home-office buying guide with comparison tools for chairs, standing desks, walking pads, portable monitors, and room layouts.

ZDash is a forthcoming Windows workspace that combines live vehicle data, maintenance history, issues, parts, costs, and saved drives for classic Nissan and Infiniti owners.

A Korean tool that checks franchise brands against public data and estimates whether a proposed shop might actually make money.

An offline prayer utility that calculates prayer times in the browser, sounds an adhan, shows the qibla and bundles the Qur’an for an app.

A free, community-maintained directory for finding farms, farmers markets, u-pick fields, farm stores, and seafood docks across Alabama’s Gulf Coast and Northwest Florida.