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Subtitle
Video Subtitle Burner
Burn SRT/VTT subtitles into the video picture
Merge
Video Merger
Join multiple video clips into one in order
Compress
Video Compressor
Shrink video size by lowering resolution, frame rate and bitrate
HEIC convert
HEIC Converter
Convert iPhone HEIC / HEIF photos to JPG, PNG or WebP in bulk, with quality control and ZIP download
Auto cut-out
Product Photo White Background Maker
Cut a product out of its original background onto pure white, stack configurable promo badges on top and export at marketplace main-image sizes
Reads locally
QR Code Generator and Reader
Generate QR codes as PNG or SVG, and read codes out of an uploaded image
Tiled
Watermark Images
Stamp text or a logo across an image with tiling, rotation and opacity, then export PNG, JPG or WebP
Auto cutout
ID Photo Maker
Swap a photo's background for white, blue or red and crop it to standard ID sizes, exported as JPG or PNG
Live preview
Label Designer
Online label layout tool with barcodes, QR codes, text and shapes, live preview and PNG, JPEG, SVG or PDF export
Identity Generator
Foreign Identity Generator
Generate fictional personal profiles for major countries, with matching address, postcode and area code
Global Universities
Global University Directory
Global higher-education directory powered by ROR v2.14, 30,977 institutions across 223 countries, fully offline
Weather
Weather Lookup
Live weather for your current city by default, with search for cities worldwide
✨ Latest tools
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Date
ISO Week and Date Converter
Convert dates and ISO 8601 week numbers both ways: from a date to ISO year, week, weekday and the Monday-to-Sunday span, or from a year and week to the exact date range, flagging 52- versus 53-week years.
Finance
VAT and Surcharge Calculator
Split VAT out of a tax-inclusive or exclusive amount at 13/9/6/5/3/1 percent, then compute urban construction tax at 7/5/1 percent plus 3 and 2 percent education surcharges, with the small-business halving option.
Dev
Timestamp Batch Converter
Convert timestamps to dates or dates back to timestamps in bulk: 10-digit seconds and 13-digit milliseconds detected automatically, with local time for the chosen zone, UTC and millisecond output as CSV.
Text
Text to HTML Converter
Turn plain text into HTML line by line: paragraphs, line breaks or list items, with escaping and blank-line handling so raw angle brackets cannot break the page.
Finance
Service Income Tax Calculator
Withholding tax on service income for resident individuals: subtract 800 below 4,000 CNY or 20% above, then apply the 20/30/40 percent brackets with quick deductions, showing take-home pay and effective rate.
Date
Random Date Time Generator
Generate random timestamps inside a date range, aligned to minute, hour or day, optionally unique and sorted, each with its Unix seconds and a CSV export for test data or draw schedules.
Date
English Date Format Converter
Show one date in eleven English and numeric styles at once: ISO, US and UK long forms, weekday long form, both short forms, dotted, RFC 2822, Chinese and compact, with the 03/04 ambiguity resolved by region.
Lookup
Country Capital and Dial Code Reference
Look up capitals, international dialling codes, standard UTC offsets and the time difference from China for 57 countries, filterable by region or by name, capital and dial code, with CSV export.
Finance
Contract Payment Calculator
Split a contract amount into net and tax, schedule the down payment and instalments with the last payment absorbing rounding, then compute late-payment penalties and the total receivable as an exportable schedule.
Text
Contact Info Extractor
Pull phone numbers, landlines, emails, ID numbers, URLs, IPv4 addresses and dates out of mixed text, optionally validating ID check digits, grouped by type and exportable as CSV.
Convert
Battery Capacity Converter
Convert battery capacity between mAh, Ah and Wh using Wh equals mAh times voltage divided by 1000, with reverse calculation and a table for common 3.7, 5, 9 and 12 volt rails.
Image
Barcode Generator
Generate Code 128 set B, Code 39, EAN-13, UPC-A and ITF-14 barcodes with automatic check-digit calculation, hard rejection on a bad check digit, and PNG download at the chosen pixel width.
❓ Frequently Asked Questions
How to collect favorite tools?
Click the "Favorites" button on your browser to complete the collection.
Which browsers are supported?
Supports modern browsers such as Chrome, Firefox, Safari, and Edge. We recommend using the latest version for the best experience.
Will uploaded files be saved?
All tools process files locally in browser and do not upload them to the server, protecting your privacy.
How to find the tools you need?
Simply search for the tool name, function, and tag you need in the search box.