Small tools that do one job well.
Zelenye Solutions builds focused browser extensions. Each tool does one thing, runs locally in your browser, and never collects your browsing data.
See productsProducts
CORS Switch
Turn CORS off for the sites you choose while you develop — with one click, per site, and with an automatic shut-off so you never forget it on.
Learn more →ASCII Player
Watch YouTube, Twitch, TikTok and Instagram videos as live ASCII art, right in the player. Free, rendered on your GPU.
Learn more →Voicecut
An audio editor that never uploads your files: cut, clean up and record audio in your browser, even hours-long files, and save as MP3.
Learn more →How we build
Local first
Everything runs in your browser. Your settings stay on your device.
No tracking
No analytics, no ads, no data sold or shared. Ever.
Minimal permissions
We ask only for what the feature needs, and explain why.
Contact
Questions, bug reports or billing help: [email protected]. We usually reply within one business day.