Manuals & User Guides

Free tools // documented

Manuals and user guides for Tim Techlor's free tools: REAPER scripts, JSFX instruments and effects, and browser synths — technical, no-nonsense, straight to the point.

11 Manuals Free // MIT license Updated 2026-11-12
Showcase // 10 of 11 interfaces, straight from REAPER and the browser
TT-303 (Web) user interface
TT-303 (JSFX) user interface
TT-303PATGEN user interface
TT-KICK Kick Machine user interface
TT-KICKSHAPE user interface
TT-RUMBLER Rumble Machine user interface
TT-LuckyMidiChance user interface
TT-KNOBMOVER user interface
TT-THEMEFONTEDITOR user interface
TT-BPM2MS2HZ user interface
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Web app2026-10-10

TT-303 (Web)

Browser acid bass synth with step sequencer

User manual for TT-303 Acid Machine, a free TB-303 style acid bass synth with step sequencer and drum machine that runs in your browser. No install.

Open manual
2.1.0

Install via ReaPack

The REAPER tools come through one ReaPack repository. In REAPER: Extensions → ReaPack → Import repositories…, paste the URL, then Browse packages and search for “TimTechlor”. New to ReaPack? Get it at reapack.com.

https://raw.githubusercontent.com/timtechlor/reapack-TimTechlor/main/index.xml

Free and open source under the MIT license · Source on GitHub · Browser tools run without install: TT-303, TT-BPM2MS2HZ · Rather skip the setup? TT-REAPERMANAGER does it for you

The easy way · free · v1.4.0

TT-REAPERMANAGER

Installing the plug-ins gets a lot easier: no repository URL to paste, no hunting through ReaPack. The manager installs REAPER, ReaPack and the TimTechlor plug-ins for you, straight from the official sources, and brings everything up to date with one click. Made for beginners and pros alike.

  • One-click backup and restore of whole REAPER installations
  • Several portable REAPER installs in one window
  • Windows 10 / 11 · Linux x86_64 · macOS (Apple silicon)
Get TT-REAPERMANAGER

Start here

pick a goal
01 Write acid lines From the first note to a bass line that slides. TT-303 (JSFX) · TB-303 acid bass synth JSFX for REAPER
02 Make it move Filter rides and controlled chaos over a whole track. TT-KNOBMOVER · Rides the knobs of a TT-303 through a whole track
03 Set up and calculate Tempo maths and a REAPER theme that fits your eyes. TT-BPM2MS2HZ · Note values to milliseconds and Hertz

What's new

  1. Drop 05 is out
    New in the free acid toolkit: TT-KICKSHAPE
  2. Clean & Flat Acid 1.0.2
    Update: version 1.0.2.
  3. TT-REAPERMANAGER 1.4.0
    Installs REAPER, ReaPack and the TimTechlor plug-ins for you and keeps everything up to date.
  4. Drop 04 is out
    New in the free acid toolkit: TT-KICK Kick Machine + TT-RUMBLER Rumble Machine + Clean & Flat Acid
  5. Drop 03 is out
    New in the free acid toolkit: TT-KNOBMOVER
  6. TT-303PATGEN 1.2.0
    Bass patterns and phrase scenes.
ACID SEASON Free acid toolkit for REAPER + a 24-page 303 mixing guide Get the toolkit

All Manuals

2 / 11 entries
All 11 Instruments 2 Effects 2 MIDI tools 3 Scripts 1 Web apps 2 Other 1