/c/utilities

One-minute typing speed test in many languages.

World clock, timezone map, and meeting planner.

Free browser EXIF, GPS, XMP and C2PA metadata cleaner.

Find your next customers across 626,000,000 contacts.

AI agents that help you rank on Google and get cited by AI search.

Draw ASCII diagrams in the browser.

Meatier Lorem Ipsum placeholder text generator.

Check if a bank is open right now and see today's branch hours.

Excel and Google Sheets spreadsheet kits for budgets, freelancers and small teams, sold as digital downloads in English and Romanian editions.

Generate and verify bcrypt password hashes in the browser.

Wedding planning checklists and timelines for couples

Invoices without a subscription for freelancers and small businesses.

Free open-source password and passphrase generator from Bitwarden.

한국 사업자등록번호 조회·휴폐업 상태 확인 유틸.

사업자등록번호 조회·휴폐업·과세유형 무료 검색.

Nostalgia brain games for older adults

On-screen Hangul keyboard for typing Korean without a Korean IME.

SSH and Windows RDP workspace for server operations across desktop and Android.

Calculate exact age in years, months, and days.

Free BMI (body mass index) calculator with unit options.

Free tip and bill-split calculator with tax options.

Multi-category unit conversion calculator.

일반·간이·VAT 포함↔공급가액 환산 부가세 계산기.

Free desktop calendar and task manager, a DesktopCal alternative

Minimalist JavaScript library for random / fake helpers.

Poker room and tournament management for charitable gaming organizations

Interactive visual CIDR and IP range calculator.

Track Claude Code reset windows and usage limits

Freelance follow-up emails + rate card so unpaid invoices stop sitting

Outbound, follow-up, and closing OS packs for a repeatable client pipeline

A free taste of the Client Pipeline OS packs

Discovery, objection handling, proposals, and deal tracking

Detailed network speed, latency, and jitter test.

Color encyclopedia with conversions, schemes, and gradients.

Simple WCAG colour contrast checker for design and UI pairs.

Know what to post and why

Convert text between upper, lower, title, sentence, and alternating case.

Wide suite of CSV, JSON, XML, and Excel converters.

Large catalog of free unit conversion calculators.

Fast color palette generator for designers and developers.

Copy and paste symbols, text faces, and fancy text.

One-click copy for special characters and symbols.

Quick browser CORS header / cross-origin test helper.

Interactive tool to pick a Creative Commons license for creative work.

Plain-English explainer for cron schedule expressions.

Convert CSV ↔ JSON and related data formats in the browser.

Chat-based AI video editor with a reviewable edit plan before render

Minimalist curl-friendly URL shortener and helpers.

Simple timezone converter with dual clocks.

Free Korean spelling and spacing checker from Daum Dictionary, up to 1,000 characters.

$1 Day-3 overdue invoice chase email one-pager for freelancers

Full-screen color test for dead or stuck pixels.

Online AI face swap for photo, batch, group photo, video and GIF, with a free preview and no subscription.

Free scientific calculator in the browser from Desmos.

Free browser diagram editor (draw.io) for flowcharts and architecture.

Side-by-side text and code diff comparison in the browser.

Free online Markdown editor with live preview and export.

Global DNS propagation checker for A/AAAA/TXT/MX and more.

Free fake REST API with products, users, carts, and more.

Simple URL-driven countdown timer.

Browser SHA-256 and related hash calculators.

Emoji search and reference with per-platform designs.

Free online background eraser for photos and cutouts.

Minimal visual map of the world's timezones.

Open-source virtual whiteboard for hand-drawn diagrams.

Inspect EXIF and image metadata without installing software.

Online archive extractor — unzip zip/rar and related formats in the browser.

GIF, video, and image converters in the browser.

Simple online zip / unzip and archive compression in the browser.

Generate fake identities with names, addresses, and profiles.

JavaScript library to generate massive amounts of fake data.

One-click internet download speed test.

No-upload PDF merge, split, compress, and image↔PDF in the browser.

Generate favicons from text, image, or emoji.

Free Wordle hints, solver tools, and an independent daily word game

Minimal full-screen flip clock with themes.

Follow-up sequences for no-reply and ghosted deals

Free font pairing generator powered by deep learning.

Free quality fonts from Indian Type Foundry.

Hand-picked commercial-use free fonts and webfont generator.

Free local Chrome CRM for indie founders hunting first customers

Free multi-currency exchange-rate charts and converters.

AI music generator for songs, scores, and background music

Copy-paste emoji directory for chat, docs, and favicons.

Free Alive/Dead checker for 2026 tax-credit, rebate and government-payment ads

Open-source font library with web font embedding.

Free QR code generator for URLs, vCards, and more.

Simple online GUID / UUID generator with bulk copy.

Don’t just watch it. Feel it.

Convert iPhone photos locally in your browser

Convert Apple HEIC/HEIF photos to JPG, PNG, and more online.

Animated player cards for youth sports recognition

Sync and manage Google Drive workflows for sites and teams

Practical WordPress and WooCommerce plugins for stores

Policy checks on agent tools, before the command runs

Open-source plugin catalog securing AI agent tools for HOL Guard

Official NTS portal for e-tax invoices and tax filings in Korea.

Open-source API development and request playground.

Free interactive hospital bag checklist for mom, baby & partner

HTTP request & response testing service for developers.

iOS app icon inspiration from the App Store

Create and edit .ics / iCalendar files in the browser.

Pick exact colors from any uploaded image in the browser.

Turn any photo into a textured printable 3D STL

Korean spelling and spacing checker with inline correction suggestions.

Agent-native public product registry for indie software — search, llms.txt, queue-only submit.

Simple public IP address lookup API and web helper.

Open-source collection of client-side developer utilities.

공급가액·합계금액 기준 한국 부가세 10% 계산기.

English-speaking startup jobs in Europe you can actually get.

Free Korean character and byte counter for cover letters from JobKorea.

Validate and format JSON with clear lint errors.

Free online REST API for testing and prototyping with fake data.

대한민국 공식 도로명주소·우편번호 검색 (행정안전부).

Check that every keyboard key registers.

Adaptive touch-typing lessons in the browser.

Free ops and kit hub for small teams

Batch-friendly KR VAT worksheet (supply / VAT / total).

Multilingual grammar, style, and spell checker.

Type English or Chinese meaning inside Obsidian math — get a full LaTeX template

Fast character, letter, and word counter for pasted text.

Open-source machine translation API and web UI; self-hostable.

Privacy-oriented open frontend for web translation.

Classic Lorem Ipsum placeholder text generator.

Live visitor maps, website traffic analytics and operator-initiated chat

사업자번호·상호·휴폐업·진위확인 등 한국 사업자 조회.

Edit, merge, OCR, and compress PDFs locally in the browser.

Generate MD5 hashes from text in the browser.

Preview Open Graph / Twitter card meta tags before you ship.

Metric ↔ imperial unit conversion reference.

Quick online microphone check.

Realistic fake data generator for CSV, JSON, SQL, and Excel.

Minimal, customizable typing speed test.

Encode and decode HTML entities in the browser.

Korean spelling and grammar checker from the Pusan National University lab.

Naver free Korean font downloads (Nanum family).

AI job-search agent that matches, tailors, and auto-applies to jobs

Free online OCR — extract text from images and PDFs.

Directory of free Korean fonts cleared for commercial use.

Chaos as a Service — one script tag, instant website delight.

Free in-browser Normal Map and PBR texture generator via WebGL2.

Free CSV QA sample plus US$19 USDT offline Excel job-costing tools

DACH Freelancer-Tools für Angebote und Rechnungen — ein Bundle für $20 via PayPal.

Interactive OKLCH color picker and hex/rgb/hsl converter.

Online stopwatch and countdown timers for classrooms.

Online alarm clock with timer and stopwatch pages.

Long-running free unit and measurement converters.

Browser microphone test with live waveform.

Cold email and LinkedIn prompts with an outreach tracker

Turn one photo into a preset football goal or fake-rabona video with music.

Privacy-first PDF toolkit — compress, merge, split, convert in-browser.

Privacy-first PDF merge, split, and compress in the browser.

Free percent-of / percent-change / reverse percentage calculator.

Snap a photo of your food to automatically track calories, protein, fat, and carbohydrates.

Photoshop-like photo and PSD editor that runs in the browser.

Spin-the-wheel random choice picker.

Copy-paste special character picker in Korean.

AI image workspace with a chat Agent

Offline browser CSV — stack and dedupe free; join, split, clean for $19

Customizable Pomodoro timer with task list.

Turn any photo into a private digital jigsaw gift.

Small practical WordPress diagnostics and offline utilities

Quizzes with shareable results.

True random numbers, lists, and draws.

Random data APIs and generators for names, phones, misc fake data.

Free API for generating random user profiles as fake data.

Number, unit, and color conversion tables.

AI background remover for product photos and portraits.

Edit Existing Text in Images

A free job board for people who get paid to teach robots: teleoperation, demo recording, AV and drone test operation.

Turn six offer inputs into an evidence-aware SaaS homepage hero brief.

Free Islamic marriage biodata, saved as a PDF

Find parties and nightlife events in San Diego

Free Korean spell and spacing checker for resumes and cover letters.

Chess OCR: board photos to FEN, handwritten scoresheets to PGN.

음력·로마자·한글 학습 등 한국 문화 도구 허브 (브라우저).

Free Discord server discovery with optional cosmetic upgrades.

Turn public reviews into branded social graphics

Simple open translation frontend (Engine-agnostic UI).

Turn titles into URL-safe slugs instantly.

Check how a URL renders across common social share cards.

A browser music editor, free with registration, with separate AI music generation plans.

Internet speed test for download, upload, and ping.

Free username, gamertag, and channel name generator.

Compress and convert images in the browser with WebAssembly.

Public SSL/TLS configuration grade for any HTTPS host.

Open-source in-browser Markdown editor (offline-capable).

AI pet portraits and shareable pet star cards

Free, sourced industry statistics, every number traced back to its origin.

Free Steam market heatmaps, historical sale comparisons and visible data freshness.

Independent comparisons, supply costs and a free 4x7 sheet maker for home sticker printers that print and cut.

Free tools for makers shipping products — clean copy, cost before scale, pick stack.

SVGO-powered SVG optimizer with live preview and toggles.

View, edit, optimize, and convert SVG in the browser.

Browser OpenAPI / Swagger editor and preview.

Live objection-handling examples and answers for sales calls.

Unicode symbol and character table with copy-on-click.

URL shortener with QR codes and link management.

Korean web typing practice (한글/영문 타자연습).

KR 10% VAT supply-price ↔ total reverse calculator (reference only).

Test and validate robots.txt rules in the browser.

See your app on every screen, live.

Paste two texts and see the difference — simple online diff.

Free mid-market currency converter with live FX rates.

Exact local time, timezone, and day for any place.

Create a countdown timer to any date.

Classic multi-city world clock and meeting planner.

Convert a date/time between two timezones.

Compress PNG, JPEG, WebP, and AVIF with a simple web upload.

Classic free URL shortener with custom aliases.

Free tip-pool calculator for restaurants and bars

Infinite canvas whiteboard you can open in a browser tab.

회원가입 없는 한국어 중심 무료 온라인 도구 모음.

Simple online Pomodoro (tomato) timer.

Free browser TOTP / OTP authenticator code generator.

Free step-by-step touch typing course.

Privacy-first PDF merge, split, compress, and organize — no uploads.

Large free unit conversion calculator set (length, area, volume, more).

한글 글자수·자모·로마자·한영타자·전통단위 등 브라우저 한국어 도구 모음.

Client-side PDF merge, compress, OCR, and convert — files stay in the browser.

Parse and look up browser user-agent strings.

공급가액·부가세 포함/별도·간이과세 부가세 계산기.

Online UUID / GUID generator (v1 and v4).

Online UUID / GUID generator and decoder utilities.

Create downloadable vCard / .vcf contact files.

Online alarm clock, timer, and stopwatch.

Email finder and SMTP verification with catch-all detection.

Hosted AI video editor with a real, reviewable timeline

Auto-sync Zoom / Sound Devices dual-system audio to cameras via XML for Resolve, Premiere, and Final Cut.

Full-screen scientific / simple calculator in the browser.

WCAG color contrast checker for foreground and background pairs.

Online webcam test in the browser.

Instant unique URLs to inspect HTTP webhooks and requests.

Shows your display and browser viewport resolution.

Spin a wheel to pick a random name.

Public WHOIS / domain registration lookup.

Free browser checklist for WooCommerce→Sheets webhook failures

Online word and character counter for essays, posts, and drafts.

Preview a word in all your installed fonts at once.

Visual timezone converter for scheduling across cities.

Free offline checklist for broken WordPress enquiry paths

Control how AI sees your content.

Long-running free FX calculator and exchange-rate tables.

Generate an XML sitemap for a public website.

Free online YAML validator and reformatter.

Fast, private voice dictation for Mac and Windows

Free audio and video transcription that never uploads your file.

AI image and video creation in one studio