Z-Tech Lab
12 free tools. No sign-up, no paywall.
Small things we built to solve one problem each, then left running in public. Open one and start — no email, no trial, no paid tier. Challenges is the exception, and only because a streak needs somewhere to live.
In the lab
- 12 tools, live right now
- 1 flagship, 11 single-purpose tools
- Free — no paywall, no trial
- Health
- Social
Challenges
Set the rules — which activities earn points, and how many a day. Invite your people with one link. Then log every day with the proof you asked for, and watch the leaderboard move.
- Themes
- 6
- Visibility
- Public or invite-only
- Scoring
- Points per activity, daily caps
- Proof
- Photo and note, per entry
- Account
- Free — only to join or log
- Reading it
- No account at all
One job each, done properly
No account, no limits and nothing to install. Open one, use it, close the tab.
By tag
- Tools06
- AI03
- Design02
- Fun02
- Productivity02
- Creativity01
- Developer01
- Games01
- Security01
- Social Media01
- Utility01
AI Caption Generator
Generate personality-driven social media captions from your images using AI.
- AI
- Social Media
LLM Battle Arena
Watch AI models compete head-to-head in Chess, Poker, and Avoid the Germs.
- AI
- Games
Color Palette Generator
Generate beautiful color palettes with harmony modes. Lock, copy, and export colors.
- Design
- Tools
Typing Speed Test
Test your typing speed and accuracy with passage or timed modes.
- Productivity
- Fun
Hot Take Generator
Generate spicy opinion blurbs with adjustable controversy levels.
- AI
- Fun
Prompt Generator
Get creative writing, drawing, brainstorming, and coding prompts on demand.
- Creativity
- Tools
Markdown Previewer
Write markdown and see a live preview side-by-side. Copy as HTML or Markdown.
- Developer
- Tools
QR Code Generator
Create QR codes for URLs, text, or WiFi networks with custom colors.
- Tools
- Utility
Password Generator
Create strong, secure passwords with customizable length and character types.
- Security
- Tools
Pomodoro Timer
Stay focused with a customizable Pomodoro timer for work and break sessions.
- Productivity
Gradient Maker
Design beautiful CSS gradients with a visual editor and copy the code.
- Design
- Tools
We do this on deadlines too
The lab is where we experiment between client projects. The rest of Z-Tech does the same work to a date you can hold us to — web apps, mobile apps, backends and the design around them.