Verifying 745K code tests monthly across 649K+ 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 Temu Quince Mercari
648,565
Stores Verified
98%
Accuracy Rate
745K+
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
●Calgary Flames Shop
Code invalidated: NHLDEALInvalid
JOSHUA1
●Boydell & Brewer
Code verified: BB730Verified
TreasureCaptain5531
●MyStore.com
Code verified: MS939Verified
bombardeen_vzla
●MotionElements
Code verified: 2026PRO30Verified
JOSHUA1
●Seattle Kraken Shop
Code invalidated: NHLDEALInvalid
CouponWizard2714
●Equine One
Code verified: DIANAVerified
VicMore
●Equine One
Code submitted: DIANANew Code
VicMore
●Motocard
Code verified: 10MAPFREVerified
ValiantHero2365
●TopatoCo
Code verified: GOBBLEGOBLINSVerified
Hasta_El_Final
●TopatoCo
Code submitted: GOBBLEGOBLINSNew Code
Hasta_El_Final
●B&Q
Code verified: WELCOME2010Verified
DIZLIKE
●B&Q
Code submitted: WELCOME2010New Code
DIZLIKE
●Hairsmarket
Code verified: HAIRSMARKETVerified
JOSHUAC
●SAii Hotels
Code invalidated: ThairesidentInvalid
CashChaser8387
●Outsidepride
Code verified: LB10Verified
SaleVirtuoso5993
●Lolly Hair
Code verified: MD28Verified
CouponAce3224
●Georgia Southwest State
Code invalidated: HATS25Invalid
CleverSage
●LOFT Outlet
Code verified: HOORAYVerified
Yoseff2
streaming verification events...▌
Store Directory

648,565+ stores. Every code verified.

Browse all stores Browse by category
Harbor Freight
65 verified codes
80% health
Vistaprint
23 verified codes
95% health
Fashion Nova
17 verified codes
100% health
Temu
14 verified codes
99% health
Quince
13 verified codes
100% health
Mercari
11 verified codes
99% health
Crocs
10 verified codes
95% health
Jiffy Lube
9 verified codes
99% health
Nespresso
9 verified codes
86% health
Planet Fitness
9 verified codes
99% health
SHEIN
8 verified codes
99% health
Walgreens
8 verified codes
90% health
Use SimplyCodes

Verified codes. Every surface.

Active on 649K+ 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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Ask AI Instead

Ask AI for codes in natural conversation. Verified results with proof, no searching required.

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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