glunty All tools
177 little tools that each do one thing well - and every one runs right in your browser. No sign-ups, no popups, no paywalls, ever.
New: browse the developer cheat sheets (regex, git, bash, SQL, Docker, vim, and more) or the AI prompt library (free ChatGPT, Claude, and Gemini prompts).
Browse by category
Encoders, decoders, and validators
URL encoder / decoder
Percent-encode strings for URLs.
Base64 encoder / decoder
Standard or URL-safe base64.
HTML entity encoder / decoder
Named or numeric entities.
JSON formatter / validator
Format, validate, minify JSON.
JWT decoder + claims explainer
Decode JWTs and explain standard claims.
IP address validator (IPv4 + IPv6)
Validate addresses and compute CIDR subnets.
Kubernetes manifest validator
Quick structural pre-check for k8s YAML.
TOML formatter / validator
Validate and reformat TOML.
ROT13 / Caesar cipher
Adjustable shift cipher (toy, not security).
Regex tester
Test a regex live with match highlighting and capture groups.
URL parser and query-string breakdown
Break a URL into parts and decode its query-string parameters.
XML formatter / validator
Beautify, minify, and check well-formedness.
SQL formatter / beautifier
Format SQL with dialect, keyword case, and indent options.
Binary to text converter
Two-way: text to binary and binary to text, UTF-8 correct.
HTML to text converter
Strip HTML tags to clean plain text; keeps line breaks, decodes entities.
Morse code translator (two-way)
Text to Morse and Morse to text, International code, one-click copy.
Credit card validator (Luhn)
Check the Luhn checksum, detect the card brand, and verify length.
Generators and converters
PDF toolkit (merge, split, organize)
Merge, split, reorder, rotate, and delete PDF pages in your browser.
Images to PDF (JPG or PNG to PDF)
Combine JPG, PNG, or WebP images into one PDF; reorder and pick a page size.
PDF to JPG (PDF pages to images)
Convert each PDF page to a JPG or PNG; download one page or all as a ZIP.
Invoice generator (free PDF)
Make a professional PDF invoice with line items and tax; nothing uploaded.
Resume builder (free PDF, no sign-up)
Build a clean resume and download the PDF free; no watermark, nothing uploaded.
UUID generator (v4 + v7)
Random or time-ordered, bulk supported.
Hash generator (MD5, SHA-256, SHA-512)
All five common hash algorithms in parallel.
Color picker / converter
Hex, RGB, HSL, live-synced.
JSON to TypeScript interface
Generate TS interfaces from a JSON sample.
CSV to Markdown table
Quoted fields, header toggle, auto-delimit.
Markdown to JIRA wiki format
Headings, code, links, lists.
Markdown to Confluence storage
Storage-format XML for the REST API.
SVG to favicon set
Five PNG sizes plus the HTML link snippet.
Terraform .tfvars formatter
Align equals, optional sort.
Curl command parser
Read a curl command as a structured request.
Unix timestamp / epoch converter
Timestamp to date and back, live clock, copy buttons.
Password and token generator
Strong passwords and hex or base64url tokens, in-browser.
Number base converter
Binary, octal, decimal, hex, and any base 2-36.
CSV to JSON converter
Two-way CSV/JSON. Quoted fields, header toggle, auto-delimit.
JSON to YAML converter
Two-way JSON and YAML, configurable indent, inline errors.
Markdown to HTML converter
Live preview plus copyable HTML source.
Bcrypt hash generator + verifier
Hash a password with a cost factor, or verify a bcrypt hash.
QR code generator
QR for URLs, WiFi, and contacts. Custom colors, PNG or SVG.
Spin the wheel (random picker)
Add options, spin the wheel to pick a random winner, share it by link.
Temperature converter (C, F, K)
Celsius, Fahrenheit, and Kelvin, live-synced in your browser.
Roman numeral converter
Two-way Roman numeral and number converter, 1 to 3999, live.
Length converter (metric + imperial)
mm, cm, m, km, inches, feet, yards, and miles, live-synced.
Weight converter (kg, lb, oz)
Grams, kilograms, pounds, ounces, stones, and tonnes, live-synced.
Random number generator
Random integers in any range, secure crypto RNG, unique mode.
UTM builder (campaign URL)
Build a tagged campaign URL with utm_source, medium, and campaign.
Meta tag generator (SEO + Open Graph)
SEO, Open Graph, and Twitter Card tags with live counts and escaping.
px to rem converter (px, rem, em)
Convert px, rem, and em at any base font size, live-synced.
Password strength checker
Estimate entropy, crack time, and weak spots. Fully in-browser.
Number to words converter
Spell a number in English words, or in check and currency style.
CSV to HTML table
Quoted fields, header toggle, delimiter auto-detect, escaping, preview.
JSON to XML converter
Two-way JSON and XML, configurable root element, inline errors.
Markdown table generator
Editable grid with per-column alignment and copyable GFM table output.
Random list generator and shuffler
Shuffle a list or pick random items and names, crypto-based.
Text tools
Citation generator (APA, MLA, Chicago)
Cite websites, books, and journals; build a full reference list in your browser.
Text case converter
camelCase, snake_case, kebab-case, and more at once.
URL slug generator (slugify)
Text or title to a clean, URL-safe slug.
Lorem ipsum generator
Placeholder text by paragraphs, sentences, or words.
Word and character counter
Live words, characters, sentences, reading time, and top words.
Text diff checker
Line-level diff with additions and removals, LCS-aligned.
Sort and dedupe text lines
Sort, alphabetize, and dedupe a list of lines; natural numeric order.
Reverse text
Reverse characters, words, or lines. Unicode-safe, flip each line too.
Find and replace text
Case-insensitive, whole-word, and regex find and replace, live.
Word frequency counter
Count each word and its keyword density; live, in-browser.
Remove line breaks
Strip newlines: join lines with a space or nothing, trim blanks.
Image and color tools
Compress image (reduce file size)
Shrink a JPG, PNG, or WebP in your browser; adjust quality and resize.
Beautify a screenshot (add a background)
Put a screenshot on a gradient background with padding, rounded corners, and a shadow.
Image to ASCII art
Adjustable width and density.
Color palette extractor
Dominant colors as hex plus CSS variables.
Color palette with AI names
Hex codes + descriptive names.
Alt text generator (AI)
Accessibility-focused alt text from any image.
Color contrast checker (WCAG)
WCAG contrast ratio with AA and AAA pass/fail for text and background.
CSS gradient generator
Linear and radial gradients with live preview and copyable CSS.
Calculators
AI credit budget calculator
Plan free daily credits for Suno, Kling, Leonardo, and Runway before you run out.
Cron expression to English
Five-field cron, ranges, lists, named days.
Crontab builder
Build a cron expression field by field, with live English.
Time zone converter
Multi-target time conversion.
Wedding cake serving calculator
Tiers and sizes for any guest count.
Freelancer rate calculator
Salary target to hourly rate (estimate).
Gas cost for trip
Distance + MPG + price arithmetic.
Pizza per person
Adjusts for size, hunger, adult/kid mix.
Image dimensions calculator
Pixels and physical at any DPI.
Sleep cycle calculator
Suggested bedtimes for full 90-min cycles.
Project deadline calculator
Working days + US federal holidays.
Percentage calculator
Percent of a number, part-of-whole, and percent change.
Tip calculator
Tip amount, total, and per-person split for any bill.
Discount and sale price calculator
Sale price and savings from a percent off; stack discounts, add tax.
BMI calculator (metric + imperial)
Body mass index from kg/cm or pounds and feet/inches, with category.
Child height predictor
Estimate a child adult height from both parents heights (mid-parental method).
Age calculator
Exact age in years, months, days, plus total days and next birthday.
Date difference calculator
Days, weeks, hours, business days, and a full breakdown.
Countdown timer (days until any date)
Live countdown to any date; name it, share it by link, or embed it.
Loan calculator (monthly payment)
Monthly payment, total interest, and cost from amount, APR, and term.
Sales tax calculator
Add tax to a price, or reverse it out of a tax-inclusive total.
Compound interest calculator
Grow a principal with interest and optional monthly contributions.
Hours calculator (duration + pay)
Hours, minutes, and decimal time between two times.
Aspect ratio calculator
Simplify a resolution to a ratio, or solve a missing width or height.
GPA calculator (4.0 scale)
Weighted GPA from letter grades and credit hours on the 4.0 scale.
Statistics calculator
Mean, median, mode, range, variance, and standard deviation, live.
Fraction to decimal converter
Convert a fraction to a decimal, or a decimal to its simplest fraction.
Cron next run times
Preview the next run times for a 5-field cron expression.
Running pace calculator
Solve pace, time, or distance from any two; speed and race times.
AI-augmented
Regex to English explainer
Plain-English breakdown of any regex.
Code snippet explainer
Walkthrough for any language.
SQL query explainer
Clause-by-clause walkthrough.
Bash command explainer
Token-by-token shell breakdown.
Excel/Sheets formula explainer
Function-by-function explanation.
Improve my LLM prompt
Sharpen a vague prompt.
Email tone rewriter
Rewrite in formal, friendly, or firm tone.
Resume bullet sharpener
Rephrase only; never fabricates.
Reference
HTTP status code reference
Search every standard HTTP status code by number or name.
MIME type reference and lookup
Look up media types by MIME string or file extension.
ASCII table (0-127)
All 128 ASCII codes: decimal, hex, octal, binary, names.
JavaScript keycode tester
Press any key to see event.key, event.code, and keyCode.
chmod permission calculator
Toggle rwx bits to get octal (755) and symbolic form.
Emoji picker (copy and paste)
Search 450+ emoji by name, click to copy and paste.
Regex cheat sheet
Searchable regex reference: tokens, quantifiers, and ready-made patterns.
Git command cheat sheet
Searchable reference of common git commands and what each one does.
Bash cheat sheet
Searchable reference of common bash shell commands and syntax.
SQL cheat sheet
Searchable standard SQL syntax reference, filter by category.
Crontab cheat sheet
Searchable cron syntax and schedule examples.
Markdown cheat sheet
Searchable CommonMark and GitHub Flavored Markdown syntax reference.
Docker cheat sheet
Searchable Docker CLI and Dockerfile command reference.
CSS Flexbox cheat sheet
Searchable CSS flexbox property reference with layout recipes.
JavaScript array methods
Searchable reference of JavaScript array methods.
HTTP headers reference
Searchable list of HTTP request, response, and security headers.
curl command cheat sheet
Searchable curl command reference with what each flag does.
Vim cheat sheet
Searchable Vim keystroke reference that runs in your browser.
CSS Grid cheat sheet
Searchable CSS Grid properties, values, and layout recipes.
kubectl cheat sheet
Searchable Kubernetes kubectl command reference.
tmux cheat sheet
Searchable tmux keybinding and command reference.
PostgreSQL cheat sheet
Searchable PostgreSQL reference: psql, queries, JSONB, and admin.
npm cheat sheet
Searchable npm CLI command reference.
ffmpeg cheat sheet
Searchable ffmpeg command reference for audio and video.
SSH cheat sheet
Searchable SSH reference: keys, config, tunnels, and file transfers.
Common ports reference
Search well-known TCP and UDP ports by number, service, or protocol.
Python cheat sheet
Searchable Python 3 syntax reference that runs in your browser.
sed and awk cheat sheet
Searchable sed and awk one-liner reference.
PowerShell cheat sheet
Searchable PowerShell cmdlet and syntax reference.
TypeScript utility types
Searchable reference of TypeScript utility types like Partial and Pick.
Redis commands cheat sheet
Searchable reference of common Redis commands.
YAML cheat sheet
Searchable YAML syntax reference that runs in your browser.
grep cheat sheet
Searchable grep command cheat sheet.
CSS units reference
Searchable reference of every CSS unit and what each one does.
Go cheat sheet
Searchable Go language syntax reference that runs in your browser.
Rust cheat sheet
Searchable Rust syntax, ownership, and error handling reference.
Docker Compose cheat sheet
Searchable Docker Compose CLI and compose-file key reference.
Makefile cheat sheet
Search GNU make rules, variables, and functions in your browser.
JSON Schema cheat sheet
Searchable JSON Schema keyword reference.
find command cheat sheet
Searchable Linux find command reference that runs in your browser.
Emmet cheat sheet
Search Emmet HTML and CSS abbreviations and what they expand to.
Nginx config cheat sheet
Searchable nginx config directive reference with plain-English notes.
Java cheat sheet
Searchable Java syntax reference with plain explanations.
PHP cheat sheet
Searchable PHP syntax cheat sheet: arrays, strings, control flow, OOP.
C# cheat sheet
Searchable C# syntax reference: types, LINQ, records, async.
Sass and SCSS cheat sheet
Searchable Sass and SCSS syntax reference.
GraphQL cheat sheet
Searchable GraphQL schema and query syntax reference.
MongoDB cheat sheet
Searchable mongosh and query API command reference.
Terraform cheat sheet
Searchable Terraform CLI and HCL reference.
React hooks cheat sheet
Searchable list of React hooks with plain-English notes.
C++ cheat sheet
Searchable modern C++ syntax reference.
Ruby cheat sheet
Searchable Ruby syntax reference that runs in your browser.
Kotlin cheat sheet
Searchable Kotlin reference: null safety, collections, classes.
Swift cheat sheet
Searchable Swift syntax reference that runs in your browser.
DNS records reference
Searchable reference of DNS record types and what each one does.
HTML elements reference
Searchable reference of HTML elements by tag name and purpose.
HTTP methods reference
Searchable HTTP methods with safe, idempotent, and REST notes.
Apache htaccess cheat sheet
Searchable Apache htaccess directive reference.
JavaScript cheat sheet
Searchable JavaScript syntax reference that runs in your browser.
TypeScript cheat sheet
Searchable TypeScript syntax reference that runs in your browser.
MySQL cheat sheet
Searchable MySQL 8 command reference with plain-English notes.
systemd cheat sheet
Searchable systemctl, journalctl, and unit file reference.
Ansible cheat sheet
Search Ansible commands, playbook keys, modules, and Jinja vars.
jq JSON cheat sheet
Searchable jq filter reference that runs in your browser.
CIDR and subnetting cheat sheet
Searchable CIDR, subnet mask, IP range, and IPv6 reference.
Emacs cheat sheet
Search GNU Emacs keyboard shortcuts in a fast client-side cheat sheet.
The catalog grows as new tools ship. If a tool you want is missing, tell us via the about page.