Verifying 855K 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
648,529
Stores Verified
98%
Accuracy Rate
855K+
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
●Urban Hydration
Code verified: clearVerified
CARAJITA
●Sephora
Code verified: ALLONSALEVerified
Darka007
●Atlantic Flag & Pole
Code submitted: LILLYNew Code
CoinSage3984
●Koko's Louve
Code verified: VALENTINHAVerified
TokenDefender5823
●Koko's Louve
Code submitted: VALENTINHANew Code
TokenDefender5823
●Digi Sports
Code verified: WELCOME5Verified
SIMPLYCODESD
●Digi Sports
Code submitted: WELCOME5New Code
SIMPLYCODESD
●International Jock
Code invalidated: BEST25Invalid
lapiramidedegysa
●Artsy Mats UK
Code verified: EARLYBF10Verified
ValiantHero2365
●aumuca
Code submitted: MIANew Code
CoinSage3984
●Letsfit
Code invalidated: COUPONELEVENInvalid
EpicHawk5419
●Ausom
Code verified: DIANAVerified
CoinSage3984
●Ausom
Code submitted: DIANANew Code
CoinSage3984
●Myoxcience
Code verified: LATOUSEK20Verified
SIMPLYCODESD
●Myoxcience
Code submitted: LATOUSEK20New Code
SIMPLYCODESD
●Consult Beaute
Code verified: TREATVerified
SIMPLYCODESD
●Consult Beaute
Code submitted: TREATNew Code
SIMPLYCODESD
●Hostinger
Code verified: Demand10Verified
Gotopo3110
●East Forged
Code verified: KYM10Verified
simplycodes122
●East Forged
Code submitted: KYM10New Code
simplycodes122
streaming verification events...▌
Store Directory

648,529+ stores. Every code verified.

Browse all stores Browse by category
Harbor Freight
66 verified codes
80% health
Vistaprint
21 verified codes
99% health
Fashion Nova
17 verified codes
100% health
Temu
15 verified codes
100% health
Quince
13 verified codes
100% health
Mercari
11 verified codes
94% health
Jiffy Lube
9 verified codes
75% health
SHEIN
9 verified codes
88% health
Walgreens
9 verified codes
90% health
Crocs
9 verified codes
95% health
Planet Fitness
9 verified codes
99% health
Sephora
8 verified codes
92% 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
Apply Best Code
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Mobile App

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AI INTEGRATION
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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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