Plug in. Find your sound.
Your guitar, a warm amp, a few good pedals.
Your pedalboard
Step on a switch. Turn a knob. Make it yours.
Recording Room
Catch an idea. Keep a take.
Switch the amplifier on to record. Use headphones for the click.
Înregistrare temporară. Descarcă trackul pentru a-l păstra. Se șterge la închiderea/reîncărcarea paginii sau după 24 de ore.
First time plugging in?
- Connect your guitar to an instrument input on your audio interface. Enable Hi-Z if the input requires it.
- Select the interface above. Switch POWER on and allow microphone access; the browser uses that permission for your guitar input.
- Check “Input active” shows the interface. Choose the guitar channel; the available channels depend on what the browser exposes.
- On a Mac, set your audio interface as the system sound output so the amp reaches its headphones or speakers.
- Turn off direct monitoring in your interface mixer so you hear one processed signal. Keep loopback off.
- Begin on Clean with the pedals bypassed, then add effects one at a time.
Browser audio has some latency. An external interface usually helps, but round-trip latency depends on the interface, driver and browser. This tool does not claim zero latency.
On Safari, if a device is missing, allow this website microphone access in Safari settings, reconnect the interface, and use Refresh inputs. The tool never switches a selected interface to another microphone automatically.
Audio validation
Recorder tests do not use a microphone.
Tests do not open a microphone or play through speakers.
Free online guitar amp simulator
The Harniciuk Sonic Amp Room is a free guitar amp simulator that runs directly in your browser. Plug in your guitar, choose a clean or crunch amp tone and build a pedalboard in front of it — no software download, no plugin installation and no account needed to try it.
How to use the amp simulator
- Connect your guitar to an audio interface and plug in headphones.
- Allow audio input access when the browser asks, then pick your interface.
- Start with the amp gain low, set the volume, then add pedals from the pedal shelf.
- Open the Recording Room to capture a take and download it.
Pedals and tones you can build
Stack a warm overdrive or a fuzz for rhythm parts, add tape echo and room reverb for leads, or experiment with phaser, flanger and wah for colour. A compressor-style pedal helps even out clean funk and arpeggio playing. If you are unsure where to start, read our guitar amp settings guide and our pedalboard building guide.
Practice with the rest of the toolkit
Tune up with the online guitar tuner, keep time with the metronome, jam over the backing track generator, find notes with the scale generator, check shapes in the chord analyzer and write parts in the TAB creator.
Frequently asked questions
Is the Harniciuk Sonic amp simulator free?
Yes. The amp simulator runs in your browser and you can use it for free, with no download or plugin to install.
How do I connect my guitar to the online amp simulator?
Plug your guitar into an audio interface connected to your computer, allow microphone/input access in the browser, then select the interface as the input. Use headphones to avoid feedback.
Why do I hear a delay (latency) when I play?
Latency comes from the browser and your audio driver. Use a wired audio interface, close other audio apps, prefer Chrome or Edge on desktop and use headphones instead of Bluetooth speakers.
Which effects are on the pedalboard?
You can build a chain with drive, fuzz, tape echo, reverb, phaser, flanger, wah and compression-style pedals in front of a clean and crunch amp.
Can I record what I play?
Yes. The Recording Room lets you capture a take in the browser and download it, so you can reuse the sound in your practice or songwriting.