Check a bilingual draft against a limit
Separate Han characters, Latin-script words, emoji clusters and byte lengths before submitting a translation or form.
Inspect text counts → · Compare our test cases YOUR EVERYDAY TOOLKIT
Small tools. Big possibilities.
Prepare images for upload, clean pasted lists, and inspect developer data — directly in your browser.
What are you trying to finish?
Fit an image into an upload limit
Set a byte target, compare detail and check the dimensions before downloading.
Compress an image → · Choose the right settingsPrepare a list for an import
Decide whether case and spaces matter, inspect removed-line counts, then download a clean list.
Clean a list → · Check the matching rulesEXPLORE THE TOOLS
A tool for the little things.Make room for better work 12 tools
JSON Formatter↗
Format, minify, and validate JSON. Make your data easy to read.
Image Compressor↗
Fit a target size, compare results, and download a batch as ZIP.
Word Counter↗
Compare Han characters, Latin-script words, emoji clusters and byte lengths.
Base64 Encoder↗
Encode and decode UTF-8 text, including Unicode and emoji.
URL Encoder↗
Make special characters safe for your next URL parameter.
Timestamp Converter↗
Go from Unix timestamps to readable dates and back again.
Text Cleaner↗
Remove duplicates, sort lines, and tidy up messy lists.
Password Generator↗
Create strong random passwords, right in your browser.
UUID Generator↗
Generate unique UUID v4 identifiers, one or a hundred at a time.
Color Converter↗
Translate HEX colors into RGB and HSL for your next design.
Unit Converter↗
A little less mental math. Convert length, weight, and temperature.
Percentage Calculator↗
Work out percentages, proportions, and changes in seconds.
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Practical guides, better results
How to fix invalid JSON before formatting it
A practical JSON troubleshooting checklist with examples of trailing commas, quotes, comments and precision limits.
Read guide →How to compress an image without uploading it
A browser-local workflow for choosing image dimensions, JPG or WebP quality, and PNG output without sending your photo to a server.
Read guide →Unix timestamps: seconds vs milliseconds, with examples
Understand timestamp units, compare UTC and local time, and avoid timezone mistakes when converting Unix timestamps.
Read guide →Base64 is not encryption: encode Unicode text correctly
See a UTF-8 Base64 round trip, understand why encoded text is not secret, and avoid URL-safe and binary-decoding mistakes.
Read guide →Clean a pasted list without losing meaningful entries
A worked list-cleaning example showing whitespace, case-sensitive duplicates, sorting and verification before an import.
Read guide →Percentage change or percentage points? Choose the right calculation
Worked examples for discounts, relative changes and rates, including reverse calculations and zero-base limitations.
Read guide →One bilingual sentence, several valid character counts: a test notebook
Reproduce ToolDock’s mixed Chinese-English and emoji tests, and choose the right count for a translation brief, form or byte limit.
Read guide →Finish the task. Understand the result.
Use worked examples to check your output. Each tool explains its limits, and our guides cover the decisions that a button alone cannot make.