How7o is a growing library of free online tools that run entirely in your browser — plus prank screens for fooling your friends and step-by-step tutorials for getting real work done. Nothing here needs an account, an install, or an upload: open a tool, use it, close the tab. Compress a photo before an upload form rejects it, trim a video without installing an editor, sign a PDF without a subscription, decode a JWT without pasting a credential into a stranger’s server, or set a fake update screen running on an unattended laptop.
Every utility on this site follows the same three rules. Free means free — no trials, no watermarks, no “pro” tier holding the useful half hostage. Private by architecture — files and text are processed by code running on your own device, so a contract, a password, or a family photo never travels anywhere. Instant — pages load light and tools work on the first click, on desktop and on phones.
The directory above is organized the way people actually search: image tools for converting, compressing and upscaling pictures; text and string utilities for counting, encoding and generating; video tools for trimming, merging and fixing sound; developer tools for hashes, tokens and timestamps; PDF tools for editing and converting documents; and calculators and generators for everything from exact ages to custom QR codes. The prank screens are the fun aisle — realistic fake updates, blue screens and hacker terminals that go fullscreen and end instantly with ESC.
When a tool isn’t enough, the tutorials and blog cover the surrounding questions — server management, web development, and practical how-tos — written from real problems, not keyword lists. New tools and guides ship every month; if something you need is missing, the contact page is the fastest way to get it built.