Free online toolbox for work and life
PDF, images, video parsing, UI emulators and calculators — ready to use
109Total Tools
1,824,531Total Usage
Seals & Stamps
All Tools →Online seal and stamp generators: round, ellipse, diamond and special-purpose seals
Round Seal HOT
Round seal generator with preview
Round Seal (English)
English round seal generator
Official Seal
Official seal generator with preview
Branch Company Seal
Branch company seal generator
Contract Seal
Contract special seal generator
Business Seal
Business special seal generator
Seam Seal
Seam (cross-page) seal generator
Fingerprint Seal
Fingerprint seal generator
Ellipse Seal
Ellipse seal generator
Invoice Seal
Invoice special seal generator
Customs Declaration Seal
Customs declaration seal generator
Fee Collection Seal
Fee collection seal generator
Cash Received Seal
Cash received seal generator
Finance Seal HOT
Finance special seal generator
Diamond Seal
Diamond seal generator
Cost Estimation Seal
Cost estimation seal generator
UI Emulators
All Tools →WeChat / Alipay interface emulators for demo screenshots
WeChat Home
WeChat home screen generator
WeChat Chat HOT
WeChat chat screenshot generator
WeChat Group Chat
WeChat group chat generator
WeChat Contacts
WeChat contacts generator
WeChat Friend Profile
WeChat friend profile generator
WeChat Moments
WeChat moments generator
WeChat Me Page
WeChat "Me" page generator
WeChat Services Page
WeChat services page generator
WeChat Transfer
WeChat transfer screenshot generator
WeChat Wallet
WeChat wallet generator
WeChat Balance
WeChat balance generator
WeChat Reward QR
WeChat reward code generator
WeChat Red Packet
WeChat red packet detail generator
WeChat Pay Success
WeChat pay success screenshot generator
WeChat Video Call
WeChat video call generator
WeChat Group Video
WeChat group video call generator
Alipay Balance
Alipay balance generator
Huabei Generator
Huabei screenshot generator
Alipay Transfer
Alipay transfer generator
Alipay Pay Success
Alipay pay success generator
Gaokao Score Report
Gaokao score report generator
Ranking Chart
Ranking chart generator
Couple Certificate
Couple certificate generator
Award Certificate
Award certificate generator
Beauty Certificate
Beauty score certificate generator
Office Tools
All Tools →Online PDF converters: PDF to Word, images and more
PDF to Word HOT
Convert PDF to Word online
PDF to DOC
Convert PDF to DOC online
PDF to DOCX
Convert PDF to DOCX online
PDF to PowerPoint
Convert PDF to PowerPoint
PDF to PPT
Convert PDF to PPT online
PDF to PPTX
Convert PDF to PPTX online
PDF to Image
Convert PDF to image online
PDF to JPG
Convert PDF to JPG online
PDF to PNG
Convert PDF to PNG online
PDF to TIFF
Convert PDF to TIFF online
PDF to BMP
Convert PDF to BMP online
Image Tools
All Tools →Image compression, conversion, watermark, cropping and more
Image Compressor HOT
Compress images to a target size in KB
Image Watermark
Add text watermarks to images
Image Converter
Convert between JPG, PNG, WEBP and AVIF
Image Cropper
Crop images by ratio or custom size
GIF Maker
Make GIFs from images
Image to JPG
Convert PNG/WEBP to JPG
Image to PNG
Convert images to PNG with transparency
Image to WEBP
Convert images to smaller WEBP
Image to AVIF
Convert images to AVIF format
Image Editor
Online image editor with filters
Image Enlarger
Enlarge images with smoothing
Life Tools
All Tools →Express tracking, phone lookup, ID tools, copybooks and more
Bank Card Lookup
Look up bank and card type by number
Phone Number Location
Look up province, city and carrier
Harassment Phone Lookup
Check if a number is marked as spam
ID Card Lookup HOT
Parse ID number: region, birth, gender
ID 15 to 18
Upgrade 15-digit ID to 18 digits
Express Tracking HOT
Track express parcels
RMB Uppercase
Convert numbers to Chinese uppercase amounts
Coupons
Find coupons and deals
Blank Copybook
Printable blank grid copybook
Stroke Copybook HOT
Printable stroke tracing copybook
Article Copybook
Turn articles into tracing copybooks
Name Copybook
Name tracing copybook
Number Copybook
Number tracing copybook 0-99
Arithmetic Blanks
Printable arithmetic practice sheets
Triple Arithmetic Blanks
Three-number arithmetic sheets
Calculators
All Tools →Social insurance, mortgage, blood type and more calculators
Blood Type Calculator
Predict child blood types from parents
Social Insurance Calculator HOT
Estimate social insurance and housing fund
Mortgage Calculator
Compare equal payment vs equal principal
Housing Fund Loan
Housing fund loan calculator
Combo Loan Calculator
Commercial + housing fund combo
Prepayment Calculator
Estimate interest saved by prepayment
Chart Tools
All Tools →Online chart makers: bar, line, pie and more
Video Tools
All Tools →Parse and download videos from Douyin, Bilibili, Kuaishou
Music Tools
All Tools →Music parsing and lyrics tools
Network Tools
All Tools →IP lookup, DNS lists, JSON tools for developers
US & Global DNS
Public DNS servers in the US and worldwide
CERNET DNS
CERNET DNS servers
Railcom DNS
Railcom DNS servers by region
China Mobile DNS
China Mobile DNS servers
China Unicom DNS
China Unicom DNS servers
China Telecom DNS
China Telecom DNS servers
DNS by Region
Public DNS servers by region
IP Address Lookup HOT
Look up IP location and ISP
Browser Info
Detect UA, OS and screen info
WebSocket Tester
Test WebSocket connections online
Public DNS List
Common public DNS servers
JSON Formatter HOT
Format, validate and compress JSON
JSON to C#
Generate C# POCO classes
JSON to Java
Generate Java POJO classes
Contact Us
24/7 multi-channel support
📧 Email Support
support@52tools.example.com