⚡Generators
Generators create ready-to-use data — strong passwords, QR codes, test documents, names, colors and more. They are handy for developers seeding a test database, for anyone who wants a truly random password, or to build a Pix QR code in seconds. They all run in your browser, sending nothing to any server.
515 tools
curl Form Builder
Build curl commands with multipart -F or urlencoded -d, including @file fields with content type.
Programmer Quote Generator
Random famous programmer quote generator. Useful for README epigraphs and slides.
Random Groups Generator
Split a name list into N random balanced groups. Useful for class teams or events.
Pi to N decimals
See the number π (pi) with up to 1000 decimal places and copy as many digits as you like. Great for math study, curiosity and memorization practice.
CUID2 Generator
Generate CUID2 (collision-resistant unique ID v2) identifiers — short, safe, and optimized for URLs, databases and distributed systems.
Coupon Code Generator
Generate random coupon codes in formats like AAAA-NNNN, AANN-AANN or custom — for promos, vouchers and disposable codes.
Random Date Generator
Generate random dates within a defined range — useful for seeding test databases, app fixtures or mock spreadsheets.
Random Coordinate Generator
Generate random geographic coordinates (latitude and longitude) — globally valid or country-restricted. Useful for map fixtures and simulations.
Random IPv4 Generator
Generate random IPv4 addresses (public) — excludes private (10.x, 172.16-31.x, 192.168.x) and reserved (127.x, 169.254.x) ranges. For test fixtures.
Random Bytes Generator
Generate random bytes in hex, base64 or binary — using browser crypto.getRandomValues. For cryptographically secure keys, salts and tokens.
Random Emoji Generator
Generate a sequence of random emojis — pick theme (general, food, animals, sports) and quantity. For design, mockups and messages.
JCB Card Generator (fake)
Generate fake JCB card numbers for testing (with valid Luhn). Development only — not accepted in real transactions.
Diners Club Card Generator (fake)
Generate fake Diners Club card numbers (14 digits, BIN 36/300-305) with valid Luhn. For testing validation in development.
American Express Card Generator (fake)
Generate fake American Express card numbers (15 digits, BIN 34/37) with valid Luhn. Validation testing only.
Portugal Postal Code Generator (fake)
Generate Portuguese postal codes (####-### format, prefixes 1000–9999). For fixtures only — does not match real addresses.
Correios Tracking Code Generator (fake)
Generate Brazilian Correios tracking codes (AA999999999BR with valid check digit). Testing only — not real shipments.
Random Color Generator
Generate random colors in HEX, RGB and HSL with one click. Great for design inspiration, palettes, UI testing and beating creative block.
Random Timestamp Generator
Generate random Unix timestamps within a date range. Useful for test data.
Random Time Generator
Generate random times (HH:MM:SS) within a window.
Random GPS Coordinate Generator
Generate random latitude/longitude inside a bounding box.
RPG Character Generator
Random RPG character: name, class, race, attributes (simplified DnD 5e).
RPG Villain Generator
Random villain with epithet, motivation, secret weakness and ongoing plan.
AWS S3 Command Builder
Build aws s3 cp/sync/ls/rm commands with bucket, ACL, recursive and profile.
kubectl Command Builder
Build common kubectl commands with namespace, labels and output formats.
Mystic Persona Generator
Random mystic persona: oracle/druid/alchemist with name, specialty and secret.
Fun Username Generator
Combine adjective + noun + digits to generate fun usernames (e.g., FluffyOctopus42).
Persona Generator
Generate UX/marketing personas with name, age, role, hobbies, pains and goals.
Fantasy City Generator
Random fantasy city: name, population, government, main landmark.
Story Plot Generator
Random story plot with protagonist, antagonist, goal, obstacle and final change.
Network Topology Generator (ASCII)
Generate ASCII network topology (star, ring, mesh, bus) for N nodes.
Decision Tree Generator (ASCII)
Generate ASCII decision tree from indented bullet list (2 spaces = 1 level).
Mermaid Flowchart Generator
Generate Mermaid flowchart code from "A → B" transition list.
Sequence Diagram Generator
Generate Mermaid sequenceDiagram from "actor → actor: message" pairs.
UML Class Diagram (Mermaid)
Build Mermaid classDiagram from a list of classes with attributes and methods.
ER Diagram (Mermaid)
Generate Mermaid erDiagram from tables and foreign keys.
Graphviz DOT Generator
Generate Graphviz DOT from a list of edges; supports directed and undirected.
git rebase Builder
Build git rebase commands with base, --interactive, --onto, --autosquash, --no-verify.
tmux Command Builder
Build common tmux commands: new-session, attach, split, rename, kill, new-window.
Figlet-style ASCII Banner
Generate ASCII banner from short text (figlet-like big letters).
AWS IAM Policy Generator
Generate AWS IAM policy JSON (2012-10-17) from Effect, Actions and Resources.
Helm values.yaml Generator
Generate a minimal Helm values.yaml with replicaCount, image, service and resources.
Ansible Task Generator
Generate Ansible YAML task with common modules (apt, copy, template, service, file).
Terraform resource Generator
Generate a basic Terraform HCL resource with type, name and attributes.
fail2ban jail.local Generator
Generate a fail2ban jail.local snippet with filter, action, maxretry, bantime.
Pulumi resource Generator (TS)
Generate TypeScript Pulumi resource boilerplate (AWS/AZURE/GCP) with name and props.
Cypress test skeleton
Generate a Cypress end-to-end test skeleton (cy.visit, cy.get and assertions) from a URL, selector and expected text. Start testing your web app right away.
Jest test skeleton
Generate a Jest test file skeleton with describe, beforeEach and an example test importing your module. Start testing your JavaScript code right away.
Vitest test skeleton
Generate Vitest test skeleton (TS) with describe/it/expect.
CSRF Token Generator
Generate random CSRF tokens (32 bytes) in hex or base64url using browser Crypto API.
PHP MVC Skeleton Generator
Generate minimal PHP MVC skeleton (Controller, Model, View) from a resource name.
ASCII Wireframe Generator
Generate ASCII wireframes (header, sidebar, content, footer) for quick sketches.
X.509 CSR Summary
Read PEM CSR text and identify BEGIN/END markers and approx base64 size.
Shields.io README Badges
Generate common shields.io badges (build, license, version, downloads) for README.md.
Markdown Comparison Table
Generate Markdown comparison table for tools/options and criteria.
FAQ Accordion HTML Generator
Generate semantic HTML (details/summary) for FAQ Q&A pairs.
Markdown Checklist Generator
Convert a task list into Markdown checklist with - [ ] / - [x] (prefix "ok" to pre-check).
Conventional Commit Builder
Build a Conventional Commits message (feat:, fix:, chore:) with optional scope and breaking.
Keep a Changelog Generator
Generate a CHANGELOG.md in Keep a Changelog 1.1.0 format with all sections.
Git pre-receive hook
Generate bash pre-receive Git server hook with branch/author/size checks.
Git post-merge hook
Generate post-merge hook: reinstall deps when package-lock changes, update submodules.