The Microapp Catalog
773 microapps.
One trip.
Every microapp does one job, in 30 seconds, at the quality Big Software charges by the seat for. Pick one below, or use search above.
Featured microapp
Bank Statement Converter
Drop in a PDF statement. Get clean CSV, XLSX, QIF or OFX back — every transaction, parsed in your browser.
Essentials
The tools everyone reaches for first
Word Counter
Count words, characters & reading time
Percentage Calculator
Calculate percentages, discounts & more
BMI Calculator
Calculate your Body Mass Index
Color Converter
Convert HEX, RGB, HSL, HSV colors
JSON Formatter
Format and validate JSON data
Password Generator
Generate secure random passwords
Age Calculator
Calculate your exact age in years, months, days
Tip Calculator
Calculate tips and split bills
QR Code Reader
Scan and decode QR codes from images
Lorem Ipsum
Generate placeholder text instantly
Case Converter
UPPER, lower, Title, camelCase & more
Loan Calculator
Calculate monthly payments & total interest
New this week
Fresh from the agent team.
LinkedIn Headline Generator
Five headline drafts you can edit, each counted against 220.
Interview Follow-Up Email Generator
The "any update?" email, without sounding needy.
Email Signature Generator
Type your details, pick a layout, and copy a signature that pastes cleanly into Gmail, Outlook and Apple Mail. No account, no watermark.
Two Weeks' Notice Generator
Type your name and today's date. Get a formal two weeks' notice with your last working day calculated — copy, email or print.
Email Deliverability Checker
Type your domain. See if Gmail and Yahoo will trust your email, and what to fix.
Subject Line Analyzer
Paste a subject line. See what a spam filter and a phone screen will do to it.
Text to Speech
Paste text and hear it read aloud, in any voice your device has.
Lean Canvas Generator
Fill in the nine boxes, download your Lean Canvas as an image.
Paragraph Counter
Count paragraphs, sentences and words, and spot the long ones.
CSS Border Generator
Set width, style, color and radius, see it live, copy the CSS.
Time Value of Money Calculator
Enter any four of N, I/Y, PV, PMT and FV. Get the fifth.
HTML Table Generator
Type or paste your data, copy clean HTML table code.
50 States in Alphabetical Order
All 50 US states A to Z, ready to copy — with abbreviations or capitals.
Resume Action Verbs
Search 200+ strong resume verbs. Tap one to copy it.
Behavioral Interview Questions Generator
The behavioral questions you'll face for one role.
Resume Skills Generator
Type a job title. Get the skills to put on your resume.
STAR Method Answer Builder
Turn rough notes into a STAR interview answer.
Reference Letter Generator
Turn what you've seen them do into a letter you'd sign.
Interview Thank-You Email Generator
A thank-you email that names what you talked about.
ATS Resume Checker
See which words a job posting uses that your resume doesn't.
Quiz Question Generator
Paste a passage, get quiz questions and an answer key.
PDF Translator
Translate a PDF into 30+ languages, page by page, next to the original. The file stays in your browser; only its text goes to the AI.
Sentence Expander
Make a short sentence say more, not just run longer.
Resignation Letter Generator
Type your name and last day. Get a short, polite resignation letter — copy, email or print.
Apology Letter Generator
Say sorry without the excuses. One letter, checked.
Background Remover
Cut the background out of a photo. Full size, in your browser.
Sod Calculator
Lawn size in, sod order out — pieces, pallets, and what it costs.
Image Upscaler
Make an image 2× or 4× larger and sharper — runs on your device, no upload, no credits, no watermark.
Presentation Timer
A talk countdown that turns yellow, then red, then counts how far over you went.
Scoreboard
Two big scores, side by side. Tap to add a point. Full screen for the room.
For writers
Drafting, editing, polishing
Word Counter
Count words, characters & reading time
Character Counter
Count characters with and without spaces
Paraphrasing Tool
Rewrite text in your own words
Text Summarizer
Summarize long text into key points
AI Bio Generator
Generate professional bios for LinkedIn
Cover Letter Generator
Generate tailored cover letters fast
Hashtag Generator
Generate trending hashtags for social media
Caption Generator
Generate engaging captions for Instagram
AI Poem Writer
Write poems on any topic or style
Outline Generator
Generate an AI-style outline from a topic
Thank You Note Generator
Generate heartfelt thank you notes
Email Subject Generator
Generate high-open-rate email subject lines
For developers
Format, encode, debug, ship
JSON Formatter
Format and validate JSON data
Base64 Encoder/Decoder
Encode and decode Base64 strings
Regex Tester
Test and debug regular expressions
JSON to CSV
Convert JSON arrays to CSV format
CSV to JSON
Convert CSV to JSON format
URL Encoder/Decoder
Encode and decode URLs
HTML Encoder/Decoder
Encode and decode HTML entities
SHA-256 Generator
Generate SHA-256 cryptographic hash
MD5 Hash Generator
Generate MD5 hashes from any text
UUID Generator
Generate random UUID v4 identifiers
Curl Builder
Build cURL commands from a URL
Binary Decoder
Decode binary code (8-bit ASCII bytes) into readable text — accepts spaces, commas, or no separators
Math made easy
Calculators that do the work for you
Percentage Calculator
Calculate percentages, discounts & more
BMI Calculator
Calculate your Body Mass Index
Tip Calculator
Calculate tips and split bills
Loan Calculator
Calculate monthly payments & total interest
Compound Interest Calc
See how your money grows over time
Average Calculator
Calculate mean, median, mode & range
Standard Deviation Calculator
Sample and population SD plus mean, median, variance, min/max — paste any list of numbers
Factorial Calculator
Compute n! exactly for n up to 170, scientific notation up to n = 1000
Combination Calculator
C(n, k) = n! / (k! × (n−k)!) — selections where order does not matter
Permutation Calculator
P(n, k) = n! / (n−k)! — arrangements where order matters
Logarithm Calculator
ln (natural), log₁₀, log₂, or any custom base — answers 'what power gives me this number?'
Long Division Calculator
Divide step-by-step with the algorithm you learned in school — quotient, remainder, and every intermediate step
Browse by category
Seven categories. Every microapp belongs to one. Pick a shelf.
Text Tools
Word counters, character counters, text formatters, case converters, diff checkers, and more — all free, all instant.
Browse →Number Calculators
Percentage calculators, unit converters, loan calculators, BMI, GPA, tip calculator, and dozens more math tools.
Browse →Time & Date Tools
Age calculators, date difference tools, countdown timers, stopwatch, Pomodoro timer, and more.
Browse →Generators
Password generators, lorem ipsum, random number generators, coin flip, dice roller, name generators, and more.
Browse →Dev Tools
JSON formatter, Base64 encoder, QR code reader, regex tester, cURL builder, Markdown to HTML, and more.
Browse →Writing & AI
AI bio generator, paraphrasing tool, text summarizer, cover letter generator, hashtag generator, and more.
Browse →Colors & Design
Color converter, hex to RGB, color palette generator, gradient generator, color name finder, and more.
Browse →PDF Tools
Convert images to PDF, extract pages, merge files, sign documents, unlock password-protected PDFs — all client-side, files never leave your browser.
Browse →Image Tools
Compress, resize, convert, and crop images — PNG, JPG, WebP, AVIF, HEIC. Every operation runs in your browser, no upload, no watermark.
Browse →Video & Audio
Pull the audio out of a video and convert between video and audio formats. Every conversion runs in your browser — no upload.
Browse →