Joyo JF-21 Splinter

$35.00 to $37.99 Price Tier: Budget

4.0 (8)

1 Critic Review

5 Reviews

All time low price

Find out who is using Joyo JF-21 Splinter

4 community setups

1 wishlisted

25 saved

Page last updated Jun 20, 2026

Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated June 20, 2026.

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Reviews

Price

$37.99

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5.0 (3)

$36.89 7 available New

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4.7 (70)

$36.00 $35.00 $1.00 · All time low

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Average Price: $37

Budget/Beginner

$80

$181+

Price Tier

In the Distortion Effects Pedals category, Joyo JF-21 Splinter is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

Budget

Standard

High-end

Price History

Based on price data from 1 merchant for "Joyo JF-21 Splinter". Prices shown reflect NEW condition. Tracking began Apr 19, 2026.

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Description

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Unleash the power of vintage tones with the Joyo JF-21 Splinter, a dynamic distortion effects pedal that bridges the gap between fuzz and distortion. This pedal is designed for guitarists seeking the classic sound of a bygone era, yet it offers enough versatility to fit into any modern setup. Whether you're looking to replicate the gritty sounds of the '70s or add a unique edge to your current tone, the JF-21 Splinter provides the tools you need.

With intuitive controls for distortion, filter, and volume, this pedal ensures you have complete command over your sound. The interesting combination of fuzz and distortion adds depth and character to your music, making it a must-have for any guitarist wanting to explore new sonic landscapes. This pedal features a sturdy footswitch for effect bypass and an LED indicator to easily show when the effect is engaged.

For ease of use, the JF-21 offers standard 6.3 mm jack inputs and outputs, and supports power via a 9V battery or a DC mains adapter, ensuring you're always ready to perform. Compact and reliable, this pedal is ideal for gigs, studio sessions, or home practice.

Key Features:

Classic sound with a unique fuzz and distortion blend
Controls: Distortion, filter, volume
LED indicator for effect on
Footswitch for effect bypass
Input and output: 6.3 mm jack
Power options: 9V battery or 9V DC mains adapter (not included)
Power consumption: 20 mA

Product specs

Available since	February 2022
Overdrive	No
Distortion	Yes
Fuzz	Yes
Metal	No

FAQs

What kind of distortion can I expect from the Joyo JF-21 Splinter?: The Joyo JF-21 Splinter offers a versatile distortion sound with a blend of fuzz characteristics, making it suitable for a range of rock and alternative music styles.
Does the Joyo JF-21 Splinter work well with both single-coil and humbucker pickups?: Yes, the Joyo JF-21 Splinter is designed to perform well with both single-coil and humbucker pickups, providing consistent distortion tones across different guitar types.
Can the Joyo JF-21 Splinter be powered with a standard 9V power supply?: Yes, the Joyo JF-21 Splinter requires a standard 9V DC power supply, which is common for most guitar pedals.
Is the Joyo JF-21 Splinter suitable for live performances?: The Joyo JF-21 Splinter is compact and robust, making it suitable for live performances where reliable and consistent distortion is needed.
How does the fuzz element in the Joyo JF-21 Splinter affect its sound?: The fuzz element in the Joyo JF-21 Splinter adds a gritty, textured layer to the distortion, offering a unique sound that stands out in a mix.

Videos

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TheGuitarGeek

Joyo Splinter JF-21 Distortion Review | A Fat Rat for 40 Bucks! #PocketMoneyPedals

TheGuitarGeek

Joyo JF-21 Splinter Demo - By Jose De Castro

JOYO AUDIO

The best modded Rat under $40: JOYO JF-21 SPLINTER

The Tone Lounge

JF 21 SPLINTER OFFICIAL VIDEO

JOYO AUDIO

JOYO JF-21 SPLINTER Distortion (Bass Demo)

Jo Bass

Joyo JF-21 Splinter / Doom Metal Demo

Doom Tones

JOYO JF-21 SPLINTER VS JOYO JF-22 Oxford Sound

JOYO Direct

Reviews

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PROS

Excellent for bass, with no bottom loss on fat switch
Offers both Mosfet and stock distortion modes for versatile sound
Can emulate Darkglass and Rat-like sounds at a low cost
Unaffected by playing style (finger or pick)
Good build quality and solid sound options for beginners
Works well for Rat-style distortion lovers
Offers a wide range of tones from light gain to heavy sludge
Priced competitively as an effective Rat pedal clone

CONS

Not a 1:1 Rat circuit clone, nuances may be missed by professionals

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Joyo JF-21 Splinter.

Features and functionality

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The "Fat" setting offers thicker lows and darker highs, requiring filter knob adjustments to manage the compression and tone.
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The filter knob on the Joyo Splinter works inversely compared to traditional tone controls; turning left boosts highs, while turning right emphasizes bass.
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Some users face challenges integrating the Splinter into their rig due to its lack of wet/dry mix, resulting in a completely wet signal when engaged.
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The mosfet/stock toggle switch can bypass clipping, similar to a Reutz mod in a Rat, though some users report minimal audible difference.
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The "fat" switch noticeably adds beef to the sound, enhancing the pedal's versatility for different rock styles.
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Build quality

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The DC socket placement is criticized for being impractical, located too close to the input jack.
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The pedal's metal casing is described as solidly built, instilling confidence for use on a gigging board.
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Comparisons

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The Splinter is noted to have a looser bottom end and darker tone compared to the RAT built into the Katana Artist, which is smoother and clearer.
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The Mosky Black Mouse is noted to be bassier and less tight, likely due to circuit inaccuracies compared to the Joyo Splinter.
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Users highlight the Joyo Splinter as a budget-friendly alternative to the expensive Fat Rat, offering similar functionality and satisfaction in sound.
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Use cases and applications

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The Splinter is ideal for 70s/90s rock, stoner rock, and doom metal, but less suited for modern metal or 80s hotrodded Marshall tones.
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The pedal effectively transitions from light crunch to heavy fuzz and full distortion, especially when paired with a TS9 overdrive.
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The vintage mode replicates the sound of an actual ProCo Rat pedal, providing authenticity for those seeking classic tones.
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User experience

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Some users report significant noise issues, including humming and interference when increasing the volume.
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Users appreciate the Splinter for extending practice sessions by adding enjoyable tonal options, indicating its value in maintaining engagement.
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Increasing distortion past level 4 can result in a mushy, overloaded sound, reminiscent of input overloading issues.
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Critic Reviews

Joyo JF-21 Splinter: A ProCo Fat Rat clone for very little money - gearnews.com

gearnews.com

The Joyo JF-21 Splinter offers an affordable entry into the coveted Fat Rat distortion sound, delivering a remarkably close clone packed with four versatile modes. With its budget-friendly price tag, it provides great value for those seeking that classic '80s tone. However, while it impresses with flexibility, it falls short compared to pricier alternatives like the JHS PackRat, which offers more voices. Overall, the Splinter is a solid choice for thrifty pedal enthusiasts but may leave more discerning players wanting a bit more depth.

positive

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4.0 out of 5

Based on 5 Reviews and 8 Ratings

5 star

4 star

3 star

2 star

1 star

brotherrat

105

15 days ago

Great Budget Rat Clone

Found this pedal to be pretty useful despite being only $35 new. The Fat and Mosfet clipping modes are great for bass and can help with the bright and aggressive tone the RAT usually has. Only complaint I have is the thing can feedback extremely easily at higher gain settings and the DC jack being on the side is a bit baffling as a design decision.

Roles:

Guitarist Bassist

m0gw41

163

3 months ago

Master Splinter

I'm big fan for teenage mutant ninja turtles. Thats why I bought this. This is almost FAT RAT

Roles:

Photographer

Genres:

Rock Alternative rock Pop rock

tsakiris

126

4 months ago

versatile

Rat clone, pretty versatile pedal. You can make it sound as an overdrive, distortion or even a fuzz. Works as a booster too. Don't use it often but comes handy sometimes.

Roles:

Guitarist Composer

Genres:

Rock Alternative rock Post-rock

henry_arruda

over 1 year ago

Very impressive and affordable pedal

I have one since last year, it's amazing, is very easy to use and to get good sounds, I never had any problem with this pedal

Preferred Settings + Usage:

I use it on all the time, basically my overdrive

Roles:

Guitarist

Genres:

Rock Alternative rock Indie rock

rafaelmoraes

144

about 4 years ago

Solid distortion pedal

It's a good distortion pedal for those who like the Rat-style distortion.

Preferred Settings + Usage:

Distortion at noon, filter from 11 to 1 o'clock and volume at noon. I put a Ts-style overdrive in front of this pedal, in a boost setting, so it'll sound tighter and less fuzzy.

Roles:

Guitarist

Genres:

Alternative rock Punk rock Pop punk