
CURL
Securely transfer data, download files, create scripts, and automate tasks.
- Freemium
- Windows, macOS, Linux, Unix
- Data & AnalyticsProductivity
- Free plan available
- No credit card

What is CURL?
Key features
Multi-protocol support
HTTP, HTTPS, FTP, FTPS, SCP, SFTP, Telnet, LDAP, and more
Header customisation
Set custom headers, authentication tokens, and cookies for each request
File transfer and download
Download or upload files with progress tracking and resume capabilities
API testing
Send complex requests to APIs with various HTTP methods, data formats, and payloads
Scripting and automation
Chain commands in shell scripts to automate repetitive data transfer tasks
SSL/TLS support
Secure connections with certificate verification and advanced security options
Pros & cons
Advantages
- Completely free and open-source with no licensing restrictions
- Pre-installed on most systems; minimal setup required
- Lightweight and fast with minimal resource consumption
- Extremely flexible with hundreds of command-line options for different scenarios
- Extensive documentation and wide community support across decades of use
Limitations
- Steep learning curve; command syntax can be complex for those new to command-line tools
- No graphical interface; entirely command-line based
- Error messages can be unclear without prior familiarity with the tool
Use cases
Testing API endpoints during development and debugging
Downloading files or data from remote servers in automated scripts
Uploading files to servers or cloud storage services
Monitoring website availability and response times
Automating data synchronisation between systems in scheduled tasks
Ready to try CURL?
Pricing
Get started with CURL
Click through to CURL and start using it now.
- Free plan available
- No credit card