Waitless

Waitless is a Greasemonkey/Tampermonkey userscript that speeds up JavaScript-driven countdowns on supported download pages by making browser timers appear to move faster.

It has no configuration panel and runs only on the hosts listed in the userscript header.

What It Changes

The current script accelerates:

• setTimeout
• setInterval
• Date and Date.now()
• performance.now() when the page allows it to be overridden
• only delays of 500ms or more are accelerated, so short polling and animation timers stay at normal speed

Default behavior in waitless.js:

• Speed factor: 30x
• Minimum accelerated delay: 500ms
• Minimum scheduled delay after scaling: 10ms
• Match patterns: the listed download hosts in the userscript header
• Run timing: document-start

What It Can Help With

If a page relies only on client-side JavaScript countdowns before enabling a button or showing content, this script may make that countdown finish sooner.

Limits

This does not bypass:

• server-enforced waiting periods
• token validation
• CAPTCHAs
• rate limits
• download rules enforced outside page-side JavaScript

Some sites may also behave incorrectly if they depend on real-time timing for animations, polling, or anti-tamper logic.

Installation

1. Install a userscript manager such as Greasemonkey or Tampermonkey.
2. Open Greasy Fork at https://greasyfork.org/.
3. Find the Waitless script and click its install button.
4. Confirm the installation in your userscript manager.
5. Reload the page you want to test.

Verification

The current version was verified locally with a small Node-based harness that executed the userscript in a mocked browser environment.

Observed behavior:

• a 3000ms timeout fired in about 100ms
• Date.now() advanced about 30x faster than real elapsed time
• performance.now() advanced about 30x faster than real elapsed time

That confirms the present implementation is working as written for timer acceleration. Real-world results still depend on how each site implements its waiting logic.