Verifying 1.1M code tests monthly across 648K+ stores

Codes that actually work.

Other sites guess. We verify. Every code is tested by machines, confirmed by humans, and proven by real checkouts before you see it.

Popular: Harbor Freight Vistaprint Fashion Nova Quince Temu SHEIN
648,490
Stores Verified
98%
Accuracy Rate
1.1M+
Monthly Code Verifications
$1B+
Annual Commerce Verified at Checkout
Verification Engine

We don't list codes. We verify them.

Most coupon sites scrape codes and hope they work. 40–60% of codes on the public web are dead, restricted, or fake. We run a three-layer verification system that tests every code before you see it.

Automated Testing Active
Headless browsers simulate real checkouts across our merchant network every day.
Human Consensus Active
Tens of thousands of trained verifiers with trust scores and screenshot proof.
Fleet Signal Active
Live checkout data from extension users. Ground truth from real transactions.
Read the full methodology →
Live Verification Feed LIVE
●REGAL Curtains
Code submitted: donnNew Code
harinapan
●Yodeyma US
Code verified: WELCOMEUSAVerified
SIMPLYCODESD
●Yodeyma US
Code submitted: WELCOMEUSANew Code
SIMPLYCODESD
●DR CHORNES BOTANICAL FORMULAE
Code verified: LINKVISKIVerified
GrimmKing
●DR CHORNES BOTANICAL FORMULAE
Code submitted: LINKVISKINew Code
GrimmKing
●Naspora
Code verified: BETTER20Verified
SIMPLYCODESD
●Naspora
Code submitted: BETTER20New Code
SIMPLYCODESD
●Sugar Bee Clothing
Code verified: adb1mVerified
donaldJtrump
●Sugar Bee Clothing
Code submitted: adb1mNew Code
donaldJtrump
●REGAL Curtains
Code verified: donnaVerified
harinapan
●REGAL Curtains
Code submitted: donnaNew Code
harinapan
●Minnesota Gophers
Code verified: FREESHIP39Verified
CrownShopper7142
●Unique Style Racing
Code verified: CELEBRATE15Verified
SIMPLYCODESD
●Unique Style Racing
Code submitted: CELEBRATE15New Code
SIMPLYCODESD
●REGAL Curtains
Code verified: donnaeVerified
harinapan
●Sugar Bee Clothing
Code verified: adb2mVerified
donaldJtrump
●REGAL Curtains
Code submitted: donnaeNew Code
harinapan
●Sugar Bee Clothing
Code submitted: adb2mNew Code
donaldJtrump
●Mizzou Athletics
Code invalidated: FREESHIP39Invalid
QuestOwl9632
streaming verification events...▌
Store Directory

648,490+ stores. Every code verified.

Browse all stores Browse by category
Harbor Freight
64 verified codes
80% health
Vistaprint
21 verified codes
94% health
Fashion Nova
16 verified codes
100% health
Quince
13 verified codes
100% health
Temu
12 verified codes
95% health
SHEIN
11 verified codes
92% health
Mercari
11 verified codes
94% health
Jiffy Lube
9 verified codes
75% health
Crocs
9 verified codes
95% health
Nespresso
9 verified codes
93% health
Planet Fitness
9 verified codes
99% health
Kohl's
8 verified codes
93% health
Use SimplyCodes

Verified codes. Every surface.

Active on 648K+ stores

Browser Extension

Activates at checkout. Tests codes in the background. You save without lifting a finger. No browsing history tracked.

See How It Works Available for Chrome, Firefox, Safari, and Edge.
SimplyCodes found 3 codes nike.com
SAVE20 98% -$24.00
FREESHIPNOW 91% Free Ship
STUDENT10 88% -$12.00
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The Glass Box

Every verdict comes with evidence.

We show the bones. Not just the answer.

Every code carries a Health Score — a freshness-adjusted confidence rating derived from automated tests, human consensus, and real checkout outcomes.

When we say a code works, that's a verdict backed by evidence. A Proof Packet with an evidence chain you can audit.

Read full methodology →
PROOF PACKET
{
  "code": "JUSTDOIT",
  "merchant": "nike.com",
  "verdict": "VERIFIED",
  "health_score": 96,
  "evidence": {
    "automated_test": {
      "result": "FUNCTIONAL",
      "tier": "PLATFORM_ADAPTER"
    },
    "human_consensus": {
      "verifications": 4,
      "confidence": "HIGH"
    },
    "fleet_signal": {
      "trend": "STABLE",
      "last_checkout": true
    }
  }
}

Data, not marketing.

Original data studies from the world's largest coupon verification dataset.

Flagship Report · Q1 2026

SimplyCodes Merchant Index

A multi-dimensional ranking of the top 100 merchants by coupon reliability, discount depth, exclusion density, and verification health.

Read the Index →
Whitepaper

Anatomy of a Verdict

How our 3-layer engine produces Proof Packets with auditable evidence chains.

~20 min read · April 2026

Read →
Data Studies

All Research

Promo code decline rates, seasonal savings trends, fine print density index, and more.

170+ articles · data & guides

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