<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2020-02-26</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001739942</issuerCik>
        <issuerName>SolarWinds Corp</issuerName>
        <issuerTradingSymbol>SWI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001804906</rptOwnerCik>
            <rptOwnerName>Widmann Michael A.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SILVER LAKE,</rptOwnerStreet1>
            <rptOwnerStreet2>2775 SAND HILL ROAD, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>Mr. Widmann is a Director at Silver Lake and is a member of the board of directors of SolarWinds Corporation (the ''Issuer''). Certain affiliates of Silver Lake have filed separate Section 16 reports reporting securities of the Issuer that they may be deemed to beneficially own. Mr. Widmann disclaims beneficial ownership of any securities of the Issuer that may be deemed to be beneficially owned by affiliates of Silver Lake.</remarks>

    <ownerSignature>
        <signatureName>/s/ Michael A. Widmann</signatureName>
        <signatureDate>2020-02-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
