Free Developer Tools

Enter a word count and elapsed time to instantly calculate words-per-minute. Includes the WPM formula and a programmer benchmark table.

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Enter keystrokes and errors to get your accuracy percentage, with a benchmark table showing what each level means.

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Convert WPM to KPH or calculate from raw keystroke counts. Includes job-requirement benchmarks for data entry and transcription roles.

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Bidirectional WPM ↔ CPM converter with skill-level benchmark table. Code typing typically runs 10–20% below prose CPM.

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Enter one speed metric and instantly see WPM, CPM, and KPH equivalents side by side.

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How long to type a document? Enter word count (or pick a preset) and your WPM to get a formatted time estimate.

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Enter current WPM, goal WPM, and weeks — get a week-by-week activity plan with session targets and drills.

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Given your WPM and daily coding hours, calculate words typed per day, week, and year.

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Project your WPM over months with a configurable monthly growth rate. Shows diminishing returns curve.

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SMART goals table and milestone roadmap for hitting your WPM target. Strategy matrix for different skill levels.

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Average WPM by age group and profession — from students to professional typists and developers.

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Realistic WPM ranges by developer role — junior, senior, staff, and 10x engineer — and what each speed tier means for daily productivity.

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Average WPM across popular programming languages ranked from easiest to hardest to type, with explanations for why code WPM is lower than prose.

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How many hours per month do you save by improving your WPM? Enter current speed, target, and daily coding hours to find out.

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Convert hours saved from faster typing into dollar savings. Link to the productivity calculator to find your hours-saved number.

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WPM requirements for common remote job categories: data entry, customer support, medical transcription, and software engineering.

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Practice typing under interview conditions. Tips for typing-heavy technical screens including live coding and whiteboard sessions.

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Common CLI commands and shell patterns to drill for terminal fluency. Covers bash, git, npm, docker, and more.

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Essential shortcuts for VS Code, macOS, and Linux — organized by category so you can drill the ones you use most.

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Common boilerplate snippets for React, Python, TypeScript, Go, and more — ready to type for muscle memory practice.

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Classic algorithm patterns (two pointers, BFS, DFS, sliding window) as typing drills — build both coding speed and pattern recognition.

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Conventional commit format, good vs bad examples, and a drillable commit message library for developers who live in the terminal.

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All 35 Python keywords and essential built-in functions in one scannable reference. Practice typing real Python code snippets.

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Every JS keyword grouped by category — declarations, control flow, async, classes, modules, error handling. Includes TypeScript extras.

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Essential SQL commands from SELECT to window functions, grouped by category. Practice SQL typing with real query snippets.

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All semantic HTML5 elements organized by category — document structure, text, forms, media, and interactive elements.

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Essential CSS properties grouped by category — layout, flexbox, grid, typography, colors, animations, and modern CSS features.

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Core React patterns — hooks, component composition, state management — as typing drills for technical interviews.

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Java keywords, OOP patterns, and collections framework reference. Practice typing Java code from Hello World to design patterns.

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Modern C++ keywords, STL containers, smart pointers, templates, and lambdas — one compact reference for drilling C++ fluency.

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Every essential Linux command organized by category with common flags — navigation, files, processes, networking, and package managers.

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JSON syntax rules, common patterns, and drillable examples — REST payloads, config files, package.json, and nested structures.

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Type any number, get that many clickable numbered boxes, and tap each as you count. Progress and notes save in your browser.

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Generate a SHA-256 hash from any text instantly, entirely in your browser — nothing is ever uploaded.

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Generate a SHA-512 hash from any text instantly, entirely in your browser — nothing is ever uploaded.

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Generate an MD5 checksum from any text instantly — useful for legacy systems, computed entirely client-side.

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Generate strong, random passwords with a custom length and character set using a cryptographically secure source.

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Check how strong a password is with a live score and specific tips to improve it — nothing is ever transmitted.

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Generate random version-4 UUIDs one at a time or in bulk, using your browser's secure random source.

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Encode or decode Base64 for text, files, and images — URL-safe, MIME wrap, image preview — in your browser.

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Encode text into a URL-safe percent-encoded format or decode it back to plain text.

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Paste a JWT to instantly decode its header and payload — decoded entirely in your browser.

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Format, validate, and beautify messy JSON instantly, with clear syntax error messages.

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Test regular expressions against sample text with live match highlighting, flags, and capture groups.

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Convert Unix timestamps to human-readable dates and back, with live current epoch time.

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Convert colors between HEX, RGB, and HSL instantly, with a live preview swatch.

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Count words, characters, sentences, and paragraphs instantly, with estimated reading time.

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Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more.

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Generate placeholder Lorem Ipsum text by paragraphs, sentences, or words for mockups.

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Generate a SHA-1 hash from any text instantly, entirely in your browser — nothing is ever uploaded.

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Generate cryptographically secure random tokens for API keys or secrets in hex, Base64, or alphanumeric.

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Count total characters, letters, digits, and spaces live as you type, plus remaining tweet space.

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Count total, empty, and non-empty lines in any text, plus the longest line length.

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Strip duplicate lines from a list while keeping the original order, with a case-sensitive toggle.

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Strip blank and whitespace-only lines from any text, with an optional trim toggle.

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Sort a list of lines alphabetically A-Z, Z-A, or by line length, shortest or longest first.

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Reverse text by character, word order, or line order instantly.

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Compare two blocks of text line by line with additions and removals highlighted.

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Turn any title into a clean URL-friendly slug with hyphens or underscores.

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Escape raw HTML into safe entities, or decode escaped entities back to markup.

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Paste a 5-field cron expression to get an instant plain-English schedule description.

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Check if a username is available across 35+ platforms — GitHub, Instagram, TikTok, X, and more — at once.

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Check domain availability across 26 popular extensions — .com, .io, .ai, .dev, and more — using live WHOIS/RDAP lookups.

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Flip the order of lines in any text — last line first, first line last — without touching the text within each line.

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Trim extra spaces, collapse repeated whitespace, remove blank lines, strip punctuation, or flatten to plain ASCII.

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Generate an HMAC-SHA256, HMAC-SHA1, or HMAC-SHA512 signature for any message and secret key, computed entirely in your browser.

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Calculate exact age in years, months, and days between any date of birth and a target date.

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Find the number of days, weeks, months, and years between any two dates.

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Three calculators in one: X% of Y, what percent X is of Y, and percentage change between two numbers.

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Calculate Body Mass Index in metric or imperial units and see which weight category it falls into.

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Calculate the tip on any bill and split the total evenly between any number of people.

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Roll virtual d4, d6, d8, d10, d12, d20, or d100 dice — one at a time or in bulk up to 20.

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Flip a virtual coin online, one at a time or in bulk up to 100 flips, with a live Heads/Tails tally.

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Generate random hex and RGB colors instantly, one at a time or in bulk, with one-click copy.

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Generate random numbers in any custom range, with or without duplicates, up to 1,000 at once.

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