Your everyday toolkit
Just the tool
you need. Pick it.
Small jobs, made simple. Find the tool you need today.
My toolbox
Keep the tools you use most in one place. 100
YouTube Timeline Maker
Turn music files into playlist timestamps for a video description.
HWP Viewer & Editor
Open and edit Korean HWP and HWPX documents right in your browser.
Seller Profit Calculator
Subtract marketplace fees and shipping to see what you actually keep.
Subtitle Editor
Fix the timing and wording of SRT and VTT subtitles and convert between them.
Compress Images
Shrink the size and quality of many images and save them singly or as a ZIP.
Stamp Maker
Make a personal seal stamp from your name and save it as a transparent image.
SQL Formatter
Reformat a query with readable line breaks and indentation.
Compare PDFs
Line up two PDFs page by page to find what changed.
Extract PDF Text
Pull the text out of a PDF page by page to copy or save.
Typing Practice
Measure your speed and accuracy in Korean or English; records stay in this browser.
Date Poll
Share a link, let everyone mark the days they can make, and find the overlap.
Korean Severance Pay
Estimate Korean statutory severance from your tenure and last three months of wages.
Markdown Preview
View the source and rendered output side by side and export to HTML.
What's My IP
See the public IP address you are using right now and where it connects from.
UUID Generator
Generate UUID v4 values with optional uppercase or hyphen formatting.
Merge PDF
Pick the order and pages, then merge several PDFs into one file.
Dead Pixel Test
Fill the screen with solid colors to spot dead pixels and blotches.
JWT Decoder
Unpack a token to read its header, payload, and expiry time.
Random Picker & Teams
Settle presentation order, winners, and team splits fairly on the spot.
Cron Expression Builder
Build a schedule expression and preview the next run times.
JSON Formatter
Pretty-print messy JSON, check it for errors, or minify it.
Label Maker
Lay a name list out onto label sheet cells and print it as a PDF.
QR Code Generator
Choose a size and save your QR code as a PNG or SVG.
Regex Tester
Enter a pattern and see matches and capture groups as you type.
VAT Calculator
Split a total into net amount and VAT, or add VAT to a net price.
Character Counter
See character, word, and paragraph counts against your target length.
Config File Converter
Convert between JSON, YAML, and TOML and see what gets lost.
Fuel & Trip Cost
Work out fuel cost from distance and mileage, add tolls, and split it among riders.
Loan Payment Calculator
Compare equal-payment, equal-principal, and interest-only repayment side by side.
Poster Tiling
Split a big image across several A4 sheets to tape together.
Recipe Scaler
Paste an ingredient list and get the amounts rewritten for your serving count.
Signature Maker
Draw your signature and save it as an image with a transparent background.
UTM Link Builder
Add source and campaign tags so your shared links show up in analytics.
Appliance Energy Cost
Estimate monthly kWh per appliance and the tiered Korean electricity bill it drives.
Barcode Generator
Choose a symbology and save your barcode as a PNG or SVG.
Chart Maker
Enter labels and numbers to get a bar, line, or pie chart image.
Remove Photo Metadata
Strip location and camera data before you upload, then check the result.
Batch Rename Files
Set a rule and rename many files at once.
GIF Maker
Chain several photos together in order to build an animated image.
Fill PDF Forms
Fill in form fields while viewing the document, or type text where no field exists.
Korean Real Estate Agent Fee
Check Korea's capped broker commission and VAT by deal type and property type.
Savings Interest Calculator
See what you actually receive at maturity after interest tax is deducted.
Volumetric Weight
Get dimensional weight from length, width, and height and compare it to actual weight.
Split the Bill
Handle different attendees per round and see exactly who owes whom.
Merge Spreadsheets
Line several files up by column name and join them into one table.
Clean Up Text
Strip extra whitespace and remove duplicate lines from any text.
Timer & Stopwatch
Set a countdown with an alert, or time laps with a stopwatch.
Unit Converter
Convert length, weight, area, volume, and temperature instantly.
URL Encode / Decode
Convert or restore non-ASCII text and special characters inside a URL.
Favicon Generator
Turn one image into favicons at every size, plus an ICO file.
Mouse Click Test
Check your left, right, and wheel buttons plus your click timing.
Printable Calendar
Pick a year and month, add notes, and print your own calendar.
Color Code Converter
Convert between HEX, RGB, and HSL and preview the resulting color.
Date & D-Day Calculator
Count days between dates, add or subtract days, and track a D-day.
Korean 3.3% Withholding
Calculate Korea's 3.3% freelance withholding both ways: gross to net and back.
Image to Text (OCR)
Lift the text out of a picture and copy it as editable text.
Image Color Palette
Pull the dominant colors from a photo and copy them as HEX, RGB, or HSL.
PDF to JPG
Pull the pages you need out of a PDF and save them as JPG or PNG.
QR Code Scanner
Read a QR code from a photo or your camera and see what it contains.
Korean Take-Home Pay
Deduct Korea's four social insurances at current rates and check your net salary.
Table Converter
Paste a table copied from a spreadsheet and turn it into Markdown, HTML, CSV, or JSON.
Timestamp Converter
Convert between Unix time and readable dates in any time zone.
Voice Recorder
Record a quick voice memo and save it as an audio file.
Work Hours & Pay
Enter clock-in, clock-out, and breaks to get hours worked and expected pay.
Speaker Test
Confirm that sound plays correctly from the left and right channels.
Background Remover
Erase the background from a photo and save it as a transparent PNG.
Base64 Converter
Encode and decode text, including non-ASCII characters, to and from Base64.
GPA Calculator
Compute your GPA from credits and grades and see what you need for a target.
Special Characters
Find symbols and emoji to copy, and build your own decorated text.
Compare Spreadsheets
Match two versions against each other and see only the added and changed rows.
Audio Trim & Join
Keep only the part you need, or join several clips into one track.
Hash Checker (SHA-256)
Hash text or a file and compare it against the value you expect.
My Device Specs
Check your CPU, memory, graphics, and display details from the browser.
World Clock & Meeting Planner
Find a meeting time that works across several cities at once.
Screen Recorder
Record your screen, a window, or a tab and save it as a video.
Percentage Calculator
Work out discounts, ratios, and percent change as you type.
Annotate Screenshot
Add arrows, numbers, and text boxes to make a screenshot easy to follow.
Packing Checklist
Get a packing list suggested from trip length, season, and purpose, then tick it off.
SVG Optimizer
Strip unnecessary data from an SVG while leaving the artwork untouched.
Text Compare
Put two texts side by side and find the changed lines and characters.
Webcam Test
Preview your camera along with its resolution and frame rate.
Remove Visible Gemini Watermark
Clean visible Gemini or Veo marks from an image or short video in your browser.
Split Image
Cut a large image into a grid or fixed heights and save the pieces in order.
Combine Images
Join several photos into a single image in the order you choose.
Image to PDF
Set the photo order and paper size, then save everything as one PDF.
Quote & Invoice Maker
Enter line items and save a Korean-format quote or invoice as a PDF.
Unit Price Comparison
Compare price per unit across products with different sizes and pack counts.
Crop Image
Crop to an aspect ratio or exact pixels and save just the part you want.
CSV to JSON
Convert between CSV and JSON and preview the result as a table.
Currency Converter
Convert at the base rate and see the real amount once fees are added.
HEIC to JPG
Convert iPhone HEIC photos into JPG or PNG files.
Blur & Pixelate Photo
Select areas to hide and cover them with pixelation or a blur.
Add Watermark
Stamp text or a logo onto many photos in one pass.
Keyboard Tester
Press each key and see right away whether any of them are dead.
Password Generator
Pick a length and character set to build a strong random password.
Compress PDF
Re-save the images inside a document to make the file lighter.
PDF Page Numbers & Watermark
Add page numbers and a watermark to a document in one step.
Split PDF
Select just the pages you need and pull them into a new PDF.
성경 타자
개역한글 본문을 한 절씩 따라 쓰고 진도를 남기세요.
SUNO 가사 다운로더
Suno 가사를 LRC·SRT·TXT로 저장하세요.
Keep the tools you use most in one place.
Saved tools are kept in this browser.