Verifying 2.7M 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 Mercari Jiffy Lube
647,791
Stores Verified
98%
Accuracy Rate
2.7M+
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
●Casemate Publishers
Code invalidated: S26-MDInvalid
VictoriousPioneer4638
●Embry-Riddle Eagles
Code invalidated: QL84Invalid
Baltichiguy
●Wonderbly
Code verified: AMBTTTIVerified
Livingston
●MyStore.com
Code verified: hope227Verified
ExtraordinarySeeker8039
●Huskers Shop
Code invalidated: QG83Invalid
BargainWizard5755
●Purdue Athletics Shop
Code invalidated: QZ14Invalid
GoldSeeker3096
●Cal Poly Mustangs
Code invalidated: QH52Invalid
SmartLion6646
●Ideal of Sweden AU
Code verified: CBDGGVerified
TOPG007
●Ideal of Sweden AU
Code submitted: CBDGGNew Code
TOPG007
●Ideal of Sweden AU
Code verified: CBHJKVerified
TOPG007
●Ideal of Sweden AU
Code submitted: CBHJKNew Code
TOPG007
●MyPillow
Code verified: HOPE387Verified
Mohamed2026
●Wonderbly
Code verified: AMBCXDVerified
Makemusic
●Intense Oud
Code submitted: JANENew Code
SavvyMonarch2877
●Lalabu
Code verified: WELCOMEBACKVerified
thehonoredone
●Lalabu
Code submitted: WELCOMEBACKNew Code
thehonoredone
●Ideal of Sweden AU
Code verified: CBJJDVerified
TOPG007
●Ideal of Sweden AU
Code submitted: CBJJDNew Code
TOPG007
streaming verification events...▌
Store Directory

647,791+ stores. Every code verified.

Browse all stores Browse by category
Harbor Freight
53 verified codes
80% health
Vistaprint
19 verified codes
95% health
Fashion Nova
15 verified codes
100% health
Quince
12 verified codes
84% health
Mercari
11 verified codes
95% health
Jiffy Lube
10 verified codes
80% health
Walgreens
9 verified codes
95% health
Nespresso
9 verified codes
99% health
Spirit Halloween
8 verified codes
87% health
SHEIN
7 verified codes
89% health
Crocs
7 verified codes
95% health
Staples
6 verified codes
95% 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
Apply Best Code
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Mobile App

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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

Browse →

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