Small tasks. Beautifully finished.
A calm workspace for the work between the work. Private, practical tools to get the little things done.
Explore the toolboxReceipt combiner
Combine receipt photos on A4 pages, add amounts and notes, and download a PDF. Free, private, and processed entirely in your browser.
Stock average cost calculator
Calculate the weighted average purchase price of stocks or crypto. Add multiple purchases, prices and fractional quantities. No account or live market connection required.
Compound interest calculator with monthly contributions
Explore initial savings, monthly investing and compound growth with an interactive chart, contribution breakdown and CSV download.
Break-even point calculator
Find the units and sales revenue needed to cover fixed and variable costs. See the contribution per unit and the whole-unit sales target.
Seller profit margin calculator
Calculate profit per sale after product cost, shipping, other costs and percentage fees. Compare margin, markup and the break-even selling price.
Multilingual Morse code translator
Convert text and Morse with international, Korean SKATS, Japanese Wabun, regional Latin extensions and Taiwan telegraph systems. Listen locally and copy or download results.
Multilingual braille translator
Preview text-to-braille with local Liblouis tables for English, Korean, Japanese, Taiwan Chinese, Spanish, French and German. Choose the braille system independently of the interface language.
PDF page extractor
Select PDF pages, ranges and order, then download a new PDF in your browser without uploading files.
Private PDF merger
Combine PDFs, PNG and JPEG images into one PDF. Reorder files and download locally without signing up.
Signature maker
Draw or type a signature and download a transparent PNG. Free local processing without uploading your signature.
Add signature to PDF
Place a PNG, JPEG or drawn signature on one PDF page. Adjust its position and size locally before downloading.
Invoice generator
Create a free invoice PDF with line items, currency, discount and your own tax rate. No account or upload required.
Quotation generator
Prepare a quotation PDF with customer details, items, discount, tax and validity date, entirely in your browser.
PDF text line-break cleaner
Join lines broken by PDF copying, normalize spacing and keep blank-line paragraph breaks. Processing stays in your browser.
Excel to Markdown table converter
Paste a copied spreadsheet table and convert it to a Markdown or HTML table locally, without uploading the data.
Word and character counter
Count Unicode characters, words, sentences and estimated reading time as you type. Text stays in this browser tab.
File SHA-256 checker
Calculate a SHA-256 digest for a local file with the browser Web Crypto API. The selected file is never uploaded.
Subscription cost calculator
Add monthly and annual subscriptions to estimate combined monthly and yearly costs in one currency.
Contract date calculator
Add calendar months and days to a start date, with month-end clamping, and find an optional advance reminder date.
Tip and bill splitter
Calculate tax and tip from a bill subtotal and divide the total evenly among a chosen number of people.
CAGR calculator
Estimate the annualized compound growth rate from a positive starting value, ending value and time period.
Image print size and DPI checker
Estimate image print width and height in inches and centimeters from pixel dimensions and a chosen DPI.
WCAG color contrast checker
Calculate the WCAG contrast ratio between two sRGB hex colors and compare it with common text thresholds.
Meeting cost timer
Multiply attendee count by an estimated average hourly cost and elapsed time. The timer runs only in this tab.
Email signature generator
Build a simple business email signature from the contact details you enter. Preview and copy the HTML locally.
Recipe cost calculator
Add ingredient amounts and costs to estimate total and per-serving recipe cost and a target price from your chosen gross margin.
Bundle discount margin calculator
Estimate bundle selling price, revenue per item and gross margin from unit cost, regular price, quantity and discount.
Position size calculator
Calculate a theoretical share or contract quantity from account value, risk percentage, entry price and stop price.
Risk/reward calculator
Compare entry, stop and target prices to calculate the price-distance ratio and break-even win rate before costs.
Inflation value calculator
Estimate the future purchasing power of an amount or the future amount needed to match it using an entered annual inflation assumption.
Break-even ROAS calculator
Estimate the ROAS needed to cover advertising spend from a product gross margin assumption.
UTM link builder
Add campaign source, medium and name to a URL and copy the resulting tracking link. Processing stays in your browser.
Hashtag cleaner
Extract hashtags, normalize duplicate matching, and copy a clean list with an optional maximum count.
GPA scale converter
Convert a grade between common GPA scales using a transparent linear formula. This is not an official equivalency.
JSON and CSV converter
Convert arrays of JSON objects to CSV and CSV rows back to JSON in your browser.
Cron expression builder
Choose a common schedule or edit the five cron fields and copy the resulting expression.
JWT decoder
Read the Base64URL header and payload of a JSON Web Token in this browser without sending it anywhere.
Regular expression tester
Try a JavaScript regular expression and flags against text entered in this browser.
SQL formatter
Apply basic indentation and line breaks around common SQL clauses in the current browser tab.
Text diff checker
Highlight added and removed lines between two pasted text versions locally.
Chmod permission calculator
Toggle owner, group and other read/write/execute bits and see the octal and symbolic permission string.
UUID and password generator
Generate random identifiers or passwords using the browser cryptographic random number generator.
URL encoder and parser
Encode or decode URL components and inspect a URL query string without an external request.
Browser metronome
Browser metronome. Play locally in your browser. No account, download or external service is required.
Virtual piano keyboard
Virtual piano keyboard. Play locally in your browser. No account, download or external service is required.
Guitar chord strummer
Guitar chord strummer. Play locally in your browser. No account, download or external service is required.
Browser drum pads
Browser drum pads. Play locally in your browser. No account, download or external service is required.
Tone generator
Tone generator. Play locally in your browser. No account, download or external service is required.
Reaction time test
Reaction time test. Play locally in your browser. No account, download or external service is required.
10-second click test
10-second click test. Play locally in your browser. No account, download or external service is required.
Memory match game
Memory match game. Play locally in your browser. No account, download or external service is required.
Whack-a-mole
Whack-a-mole. Play locally in your browser. No account, download or external service is required.
Dino jump game
Dino jump game. Play locally in your browser. No account, download or external service is required.
Tic-tac-toe
Tic-tac-toe. Play locally in your browser. No account, download or external service is required.
Snake game
Snake game. Play locally in your browser. No account, download or external service is required.
2048 number puzzle
2048 number puzzle. Play locally in your browser. No account, download or external service is required.
Simon sequence game
Simon sequence game. Play locally in your browser. No account, download or external service is required.
Rock paper scissors
Rock paper scissors. Play locally in your browser. No account, download or external service is required.
Number guessing game
Number guessing game. Play locally in your browser. No account, download or external service is required.
Color guessing game
Color guessing game. Play locally in your browser. No account, download or external service is required.
Word scramble
Word scramble. Play locally in your browser. No account, download or external service is required.
Sequence tap challenge
Sequence tap challenge. Play locally in your browser. No account, download or external service is required.
Browser stopwatch
Browser stopwatch. Play locally in your browser. No account, download or external service is required.
CBM shipping calculator
Convert package dimensions in centimeters to cubic meters and estimate dimensional weight using your carrier divisor.
Marketing metrics calculator
Calculate CPM, CPC, click-through and conversion rates, cost per acquisition and return on ad spend from your own figures.
Fair giveaway winner picker
Remove duplicate entries and draw a requested number of winners with browser cryptographic randomness.
Social post line-break helper
Prepare pasted text with preserved line breaks and a zero-width separator; test the output in your target social app.
Citation formatter
Create basic APA 7 or MLA 9 book and web reference examples from the fields you provide.
Pomodoro focus timer
Run a local focus countdown and save a simple text record of your note and completed sessions.
Survey sample size estimator
Estimate a proportion survey sample for 90%, 95% or 99% confidence with an optional finite-population correction.
Moving box volume estimator
Estimate the total volume of repeated items and the number of boxes using your own box capacity.
Baking pan recipe scaler
Scale ingredient quantities by the area ratio of two round baking pan diameters.
Subscription cancellation reminder
Create a local calendar reminder file for a chosen number of days before a subscription charge date.
Batch image watermark
Add a text watermark to up to ten local images and download each processed copy.
Image metadata remover
Decode and re-encode a supported image in the browser to remove embedded metadata.
Image color palette extractor
Sample a downscaled image locally and show its five most frequent quantized colors.
Image aspect-ratio padder
Fit an image inside a selected canvas ratio without cropping and choose the padding color.
SVG color replacer
Replace explicit SVG fills and strokes after removing scripts and external references.
Four-image grid collage
Arrange two to four local images in a square two-by-two collage.
Image Base64 converter
Convert a supported image file to a data URL or restore an image from pasted Base64.
Paint and wallpaper estimator
Estimate paint liters and wallpaper rolls from room dimensions and editable coverage assumptions.
TV viewing geometry calculator
Use viewing distance and a chosen field-of-view angle to calculate screen diagonal; set center to seated eye height.
Life-in-weeks poster
Create a private SVG grid comparing elapsed weeks since birth with a chosen planning age.
Product page image slicer
Split a tall product image into numbered PNG sections of a chosen pixel height, locally in your browser.
Batch WebP image converter
Convert up to ten JPEG, PNG or WebP images to WebP in this browser tab and download each result.
Scientific calculator
Free browser tool for Scientific calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Linear equation solver
Free browser tool for Linear equation solver. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Quadratic equation solver
Free browser tool for Quadratic equation solver. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Fraction simplifier
Free browser tool for Fraction simplifier. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Fraction calculator
Free browser tool for Fraction calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Percentage calculator
Free browser tool for Percentage calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Ratio calculator
Free browser tool for Ratio calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Length unit converter
Free browser tool for Length unit converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Temperature converter
Free browser tool for Temperature converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Weight unit converter
Free browser tool for Weight unit converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Area unit converter
Free browser tool for Area unit converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Volume unit converter
Free browser tool for Volume unit converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Speed unit converter
Free browser tool for Speed unit converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Data size converter
Free browser tool for Data size converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Number base converter
Free browser tool for Number base converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Prime number checker
Free browser tool for Prime number checker. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
GCD and LCM calculator
Free browser tool for GCD and LCM calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Statistics summary calculator
Free browser tool for Statistics summary calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Random number generator
Free browser tool for Random number generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Pythagorean theorem calculator
Free browser tool for Pythagorean theorem calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Circle calculator
Free browser tool for Circle calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Triangle area calculator
Free browser tool for Triangle area calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Roman numeral converter
Free browser tool for Roman numeral converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS triangle generator
Free browser tool for CSS triangle generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS diagonal separator generator
Free browser tool for CSS diagonal separator generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS box shadow generator
Free browser tool for CSS box shadow generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS gradient generator
Free browser tool for CSS gradient generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS border radius generator
Free browser tool for CSS border radius generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS fluid clamp generator
Free browser tool for CSS fluid clamp generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS grid generator
Free browser tool for CSS grid generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
JSON formatter and validator
Free browser tool for JSON formatter and validator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
HTML entity encoder and decoder
Free browser tool for HTML entity encoder and decoder. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Text case converter
Free browser tool for Text case converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Unix timestamp converter
Free browser tool for Unix timestamp converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
HEX and RGB color converter
Free browser tool for HEX and RGB color converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
URL slug generator
Free browser tool for URL slug generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Regex special character escaper
Free browser tool for Regex special character escaper. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Markdown table generator
Free browser tool for Markdown table generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Base64 text encoder and decoder
Free browser tool for Base64 text encoder and decoder. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS px/rem converter
Free browser tool for CSS px/rem converter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Duplicate line remover
Free browser tool for Duplicate line remover. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Text line sorter
Free browser tool for Text line sorter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Whitespace cleaner
Free browser tool for Whitespace cleaner. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Markdown table of contents generator
Free browser tool for Markdown table of contents generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
JSON to TypeScript type generator
Free browser tool for JSON to TypeScript type generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
SQL string literal escaper
Free browser tool for SQL string literal escaper. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS minifier
Free browser tool for CSS minifier. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
CSS formatter
Free browser tool for CSS formatter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Basic CSS specificity checker
Free browser tool for Basic CSS specificity checker. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Common .gitignore generator
Free browser tool for Common .gitignore generator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Cash denomination breakdown
Free browser tool for Cash denomination breakdown. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Gross salary to hourly rate
Free browser tool for Gross salary to hourly rate. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
A/B test proportion comparison
Free browser tool for A/B test proportion comparison. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Required score for a target grade
Free browser tool for Required score for a target grade. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Attendance absence allowance
Free browser tool for Attendance absence allowance. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Unicode text length counter
Free browser tool for Unicode text length counter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
List randomizer
Free browser tool for List randomizer. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Discount price calculator
Free browser tool for Discount price calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Tip and bill splitter
Free browser tool for Tip and bill splitter. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Date difference calculator
Free browser tool for Date difference calculator. Enter values to calculate or generate a copy-ready result. All processing stays in this tab.
Business hours sign
Create a clear, printable weekly opening-hours sign with editable days, times and a short note. Preview and print directly from your browser.
Short-video safe-zone preview
Overlay common vertical-video interface and caption areas on your image before posting. The guides are visual references, not official platform specifications.
Thumbnail size comparison board
Preview one image at common feed and video-thumbnail sizes on a light or dark board. No click-through or popularity prediction is provided.
Study paper PDF generator
Create printable Cornell notes, grid paper or a blank study sheet with adjustable page and line spacing. Output is generated locally.
International clothing size reference
Compare commonly used clothing or shoe size labels across regions using a quick reference chart. Brand sizing varies; verify the seller’s own chart.
World meeting time planner
Compare local times in several cities and find candidate hours that fall inside each participant’s chosen workday. Time zones use your browser’s Intl database.
ID card front and back sheet
Arrange front and back images on a printable A4 page. Images remain in the browser; check recipient requirements and protect sensitive copies.
2-up and 4-up handout PDF
Place selected image pages two or four per A4 sheet with adjustable spacing and create a print-ready PDF locally.
Image blur and mosaic tool
Select areas on an image and apply blur or pixelation before downloading. Review the exported image carefully; manual selection can miss sensitive details.
Local audio trimmer
Choose an audio file, set a start and end time, preview the selection and save the trimmed segment as WAV. Audio stays in your browser.
Currency converter
Convert currencies with free daily reference rates or a rate you enter yourself. Review the source and data date before using the result.