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Every Capsule Tool in one place — start typing to filter by name or what it does. Everything runs in your browser; nothing is uploaded.

Photo to Web

RAW, HEIC & DNG → web-ready JPG

EXIF Remover

Strip EXIF, GPS & metadata from photos

Background Remover

AI cutout to a transparent PNG

Image Compressor

Shrink & convert JPG, PNG & WebP

Image Converter

Convert images to JPG, PNG, WebP or PDF

Favicon Generator

Image → favicon.ico, PNGs, Apple touch icon & manifest

Image Cropper

Crop to a square, circle or any ratio

Batch Image Resizer

Resize many images at once → ZIP

Pay Stub Redactor

Black out details on a PDF or image

Sign PDF

Add a drawn or typed signature

PDF Stitcher

Merge several PDFs into one

Photos to PDF

Combine photos into a PDF

PDF Text Extractor

Copy clean text out of any PDF

Scanned PDF to Text

OCR scanned PDFs to text — free, no upload, no sign-up

PDF Stamper

Watermark every page with custom text

Replace PDF Pages

Swap pages with those of another PDF

PDF Batch Compiler

Fill a PDF form from a CSV — one PDF per row

Rotate PDF

Turn a PDF 90° — all pages or just one

Markdown to PDF

Turn Markdown into a clean, themed PDF

Invoice Generator

Make a PDF invoice — no sign up, no watermark

Document to EPUB

DOCX, Markdown, HTML or TXT → EPUB ebook

Citation Generator

Format APA, MLA & Chicago citations — no ads

Vectorize PDF

Trace a raster PDF into a scalable SVG vector

GIF Compressor

Compress a GIF — smaller file, no upload

GIF Frame Splitter

Split a GIF into individual PNG or JPG frames

GIF Speed Adjuster

Change a GIF's playback speed — instant, no upload

Video to GIF

MP4, MOV & WebM → animated GIF

Video Trimmer

Cut a clip from a video

Convert to WebM

Convert video or audio to WebM free — no upload, no account.

Frame Counter

Exact frame count, FPS & duration — no upload

Frame Skipping Test

Photograph a v-synced grid to check for dropped frames

Lithophane Generator

Photo → 3D-printable STL

Word Counter

Count words, characters & reading time

Find and Replace

Swap words, phrases & regex patterns in text

Address Cleaner

USPS address formatter — clean text or CSV, free

Plain Text Converter

Strip fonts, colours, bold & links from copied text

Word Cloud Generator

Paste text → word cloud, download as PNG or SVG

Text Summarizer

Summarize long text down to its key sentences

Alphabetize List

Paste a list, sort it A-Z instantly — free, no upload.

MP3 to WAV

Convert MP3 audio to uncompressed WAV

Slow Down Audio

Slow down audio or video, keeping or dropping pitch

Voice Recorder

Record your voice in-browser, then download it

White Noise Generator

Play white, pink & brown noise to mask distractions

Guitar Tuner

Tune a guitar by ear with your microphone — many tunings

Audio Oscilloscope

See live audio waveforms from your mic or a file

Audio Spectrum Analyzer

See live frequency peaks and notes, mic or file

Audio to Mono

Convert stereo audio to a true mono WAV track

Audio Transcriber

Transcribe audio or video to text — free, no upload

Baby Shusher

Shush, white noise & vacuum sounds to soothe babies

Binaural Beats Generator

Custom binaural beats for focus, sleep & meditation

BPM to MS Converter

BPM to ms & Hz chart for delay, reverb & LFO timing

Fabric Gathering Calculator

Test swatch → flat fabric to cut for gathers & ruffles

Any to CSV

Excel & JSON → CSV — comma, semicolon or tab

Data to Chart

Paste data, get an instant chart. Bar, line, pie, scatter.

Acronym Decoder

Expand acronyms & abbreviations — tech to slang

Break-Even Calculator

Fixed & variable costs + price → break-even point + chart

CAGR Calculator

Start & end value → annualized return (CAGR)

Amortization Calculator

Loan amount, rate, term → payment + full schedule

Cost Per Wear Calculator

Price ÷ wears → true cost per wear + comparison

Compound Interest Calculator

Balance, contributions & rate → future value + chart

Daily Interest Calculator

Balance & APR → daily, monthly, yearly interest

Inflation Calculator

Amount, years, rate → future cost or buying power

Compressed Insulation Calculator

Effective R-value of batt insulation squeezed into a cavity

Gameboy ROM Player

Play Game Boy & Game Boy Color ROMs in the browser

Bracket Generator

Single-elimination bracket from a list of names

Keyboard Tester

Test keys for dead keys, ghosting & rollover

ABV Calculator

Instant ABV from OG & FG — beer, wine, mead, cider

3D Surface Plotter

Plot z=f(x,y) as a rotatable 3D surface — free, no signup

Circle Area Calculator

Circle area from radius, diameter, or circumference.

Circle From 3 Points Calculator

Circle equation, center & radius from any 3 points.

Basic Calculator

Four-function calculator: correct order of operations, free

Batch Sudoku Generator

Printable Sudoku puzzle books with answer keys

Handwriting Worksheet Generator

Turn any text into printable handwriting worksheets

Printable Calendar Maker

Generate and print monthly, yearly, or blank calendars

Centripetal Acceleration Calculator

Centripetal acceleration calculator: instant m/s² & g-force.

Breathing Pacer

Box breathing timer — box, 4-7-8, resonant & custom.

Coffee Ratio Calculator

Type coffee or water — the other calculates instantly. Free.

Stitch Counter

Free stitch counter online for knitting & crochet

Barcode Scanner

Scan barcodes & QR codes with your camera. Free, no app.

Code Formatter

Format & beautify code — JS, JSON, HTML, CSS, Python

Conduit Fill Calculator

Conduit fill % calculator — EMT, PVC, Cat6, THHN

Bulk Coin Flipper

Flip a coin 100 times online — get the full sequence

Random Name Picker

Instant random name picker — no spinning wheel

Pure Red Screen

Red screen test for dead pixels & OLED burn-in

Barbell Plate Calculator

Plates to load per side, any bar or set, lb/kg.

App Screenshot Framer

Frame app screenshots for App Store & Play, free, no upload.

Color Contrast Checker

WCAG contrast ratio checker with AA/AAA pass/fail badges

Countdown Clock

Countdown clock to any date — share it as a link

Countdown Timer

Countdown timer — presets, alarm sounds, auto-repeat

Country Size Compare

Drag country outlines to compare their true size on a map

Conversion Chart Maker

Any-unit conversion table, plus cups-to-grams for baking

Cooking Measurement Converter

Convert cups, tbsp, mL & oz — plus grams by ingredient

Dilution Ratio Calculator

Ratio + one amount → exact concentrate & diluent. Free.

Data to Excel

CSV, JSON & TSV → Excel (.xlsx), free in your browser

PDF to Spreadsheet

Extract PDF tables to CSV or Excel — free, no upload

Smart Sheet to Tab

MusicXML/MIDI to guitar tab — no impossible chords

Base64 Converter

Encode text to Base64, or decode Base64 back — instantly

Kerf Bending Calculator

Kerf cut count and spacing to bend wood to a radius

Gamertag Generator

Unique gamertags, no ugly number suffix — 4 vibes

Refresh Rate Test

Live monitor Hz test with a frame-time graph

Beer Calorie Calculator

Beer calories from ABV & serving size, or homebrew OG/FG.

Blueprint Mirror

Flip a Factorio blueprint string horizontally or vertically

Basic Math Flashcards

Endless math flashcards: add, subtract, multiply, divide

Earth Curvature Calculator

Horizon distance, drop & hidden height from curvature.

Easter Date Calculator

Easter Sunday's date for any year, Gregorian or Orthodox

Binary Translator

Text to binary, or binary to text — instantly

Bulk Email Validator

Paste text → extract, dedupe & validate email addresses

Water Cement Ratio Calculator

Exact water for a target w/c ratio, or check a poured mix

Markov Chain Generator

Paste text, generate new text that mimics its style

SATA Power Pinout

Tap a pin for its voltage, wire color & test tip

Screen Mouse Jiggler

Trick an optical mouse into keeping your PC awake

Screen Ruler

Drag to measure pixel distance, size & angle

Beta Carotene Converter

Beta-carotene to bioavailable retinol (RAE) & daily value

Visual Checklist Generator

Turn a task list into a printable icon checklist

Visual Schedule Maker

Turn a text list into a printable picture schedule

Fancy Text Generator

15 Unicode styles: bold, script, Gothic & more

Fasting Timer

Set a goal, watch a ring fill toward it — 16:8, OMAD

Center Div Generator

Center a div with Flexbox, Grid, or Absolute — copy the CSS

CSS Autoprefixer

Paste CSS, get instant vendor-prefixed output. Free.

Meme Generator

Add bold top and bottom text to a photo, no watermark

Cycling Power Calculator

Estimate cycling watts & calorie burn from speed & weight

Image Flipper

Flip a photo horizontally or vertically, no upload

Escape Velocity Calculator

Escape velocity from mass & radius, with planet presets

Em Dash Copy

Copy an em dash — one tap, plus your OS shortcut

Interval Beeper

A repeating beep at your exact interval — free, no ads

Fraction Multiplier

Multiply fractions & mixed numbers, with the steps shown

Bike Gear Calculator

Gear ratio, gear inches & cassette jump calculator

Full Wrap Mug Mockup

Turn a flat design into a 3D full-wrap mug mockup

Circle Skirt Calculator

Waist radius, hem radius & fabric yardage for circle skirts

Word Search Generator

Turn a word list into a printable puzzle with an answer key

Golden Hour Calculator

Morning & evening golden hour times, with live countdown

French Verb Conjugator

Full French verb conjugation table, instantly

Interval Timer

Tabata & HIIT interval timer — presets, voice cues

Gasoline Equivalent Calculator

Convert kWh, diesel, propane, BTU & more to GGE

Random Number Generator

Random numbers with no repeats, custom ranges & decimals

Virtual Keyboard

On-screen keyboard — click keys to type, then copy the text

Every tool runs in your browser — no upload, no account, free.