Sleezr

A desktop hosts file manager that provides a visual editor, syntax validation, and automatic flushing of system and browser DNS caches so hosts file changes take effect on first reload without manual terminal commands. It sells to freelance developers, agency developers, and QA teams and other individuals and small teams managing local development environments across Windows, macOS, and Linux. Compared to manual editing and free tools such as SwitchHosts and Gas Mask, it differentiates by showing a diff before writing, taking an automatic backup before every apply, and flushing caches automatically.

Key features

• Visual hosts file editor
• Named environments per project
• Toggle entries on/off
• Syntax validation for IPs/domains
• Diff preview before write
• Automatic backup before apply
• One-click restore from backup
• Flush system DNS cache
• Flush browser DNS cache
• Bulk import hosts lines
• Command palette (Cmd/Ctrl+K)
• Blocker alerts for AdGuard/NextDNS/WARP
• In-app updates