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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

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    <periodOfReport>2016-02-05</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001428669</issuerCik>
        <issuerName>SolarWinds, Inc.</issuerName>
        <issuerTradingSymbol>SWI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001431565</rptOwnerCik>
            <rptOwnerName>Kalsu James Barton</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SOLARWINDS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>7171 SOUTHWEST PARKWAY, BUILDING 400</rptOwnerStreet2>
            <rptOwnerCity>AUSTIN</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78735</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP &amp; CAO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <transactionPricePerShare>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>28.03</value>
            </conversionOrExercisePrice>
            <transactionDate>
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            <transactionAmounts>
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                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <value>2016-02-05</value>
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                <transactionPricePerShare>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
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        <derivativeTransaction>
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                <value>Employee Stock Option (right to buy)</value>
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                <value></value>
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                <transactionShares>
                    <value>42940</value>
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                <transactionPricePerShare>
                    <value>11.38</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            <exerciseDate>
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                <value>2025-02-03</value>
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                    <value>Common Stock</value>
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                <underlyingSecurityShares>
                    <value>42940</value>
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        </derivativeTransaction>
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    <footnotes>
        <footnote id="F1">Disposed of pursuant to the Agreement and Plan of Merger between and among SolarWinds, Inc., Project Aurora Holdings, LLC and Project Aurora Merger Corp. (the &quot;Merger Agreement&quot;) in exchange for a cash payment of $60.10 per share.</footnote>
        <footnote id="F2">Represents the disposition of restricted stock units, which provided for vesting in five equal annual installments beginning January 4, 2013, which units were cancelled pursuant to the Merger Agreement in exchange for (i) a cash payment equal to the product of $60.10 per share and 50% of the number of shares subject to the cancelled restricted stock units to be paid as promptly as practicable following the closing of the merger and (ii) a contingent right to receive a cash payment of $60.10 per share subject to the satisfaction of the original vesting conditions applicable to the remaining cancelled  restricted stock units as promptly as practicable following the dates on which the vesting conditions are satisfied.</footnote>
        <footnote id="F3">Represents the disposition of restricted stock units, which provided for vesting in four equal annual installments beginning February 6, 2014, which units were cancelled pursuant to the Merger Agreement in exchange for (i) a cash payment equal to the product of $60.10 per share and 50% of the number of shares subject to the cancelled restricted stock units to be paid as promptly as practicable following the closing of the merger and (ii) a contingent right to receive a cash payment of $60.10 per share subject to the satisfaction of the original vesting conditions applicable to the remaining cancelled  restricted stock units as promptly as practicable following the dates on which the vesting conditions are satisfied.</footnote>
        <footnote id="F4">Represents the disposition of restricted stock units, which provided for vesting in five equal annual installments beginning September 11, 2014, which units were cancelled pursuant to the Merger Agreement in exchange for (i) a cash payment equal to the product of $60.10 per share and 50% of the number of shares subject to the cancelled restricted stock units to be paid as promptly as practicable following the closing of the merger and (ii) a contingent right to receive a cash payment of $60.10 per share subject to the satisfaction of the original vesting conditions applicable to the remaining cancelled  restricted stock units as promptly as practicable following the dates on which the vesting conditions are satisfied.</footnote>
        <footnote id="F5">Represents the disposition of restricted stock units, which provided for vesting in four equal annual installments beginning February 6, 2015, which units were cancelled pursuant to the Merger Agreement in exchange for (i) a cash payment equal to the product of $60.10 per share and 50% of the number of shares subject to the cancelled restricted stock units to be paid as promptly as practicable following the closing of the merger and (ii) a contingent right to receive a cash payment of $60.10 per share subject to the satisfaction of the original vesting conditions applicable to the remaining cancelled  restricted stock units as promptly as practicable following the dates on which the vesting conditions are satisfied.</footnote>
        <footnote id="F6">Represents the disposition of restricted stock units, which provided for vesting in four equal annual installments beginning February 3, 2016, which units were cancelled pursuant to the Merger Agreement in exchange for (i) a cash payment equal to the product of $60.10 per share and 50% of the number of shares subject to the cancelled restricted stock units to be paid as promptly as practicable following the closing of the merger and (ii) a contingent right to receive a cash payment of $60.10 per share subject to the satisfaction of the original vesting conditions applicable to the remaining cancelled  restricted stock units as promptly as practicable following the dates on which the vesting conditions are satisfied.</footnote>
        <footnote id="F7">Represents the disposition of options, which provided for vesting of 1/48th of the shares subject to the option on February 4, 2012 and each
month thereafter. The options were cancelled pursuant to the Merger Agreement in exchange for a cash payment of $32.07 per share subject to
the option. This per share price represents the difference between the applicable exercise price of the option and the per share merger
consideration of $60.10.</footnote>
        <footnote id="F8">Represents the disposition of options, which provided for vesting of 1/48th of the shares subject to the option on March 6, 2013 and each month thereafter. The options were cancelled pursuant to the Merger Agreement in exchange for a cash payment of $6.71 per share subject to the option. This per share price represents the difference between the applicable exercise price of the option and the per share merger consideration of $60.10.</footnote>
        <footnote id="F9">Represents the disposition of options, which provided for vesting of 1/60th of the shares subject to the option on October 11, 2013 and each month thereafter. The options were cancelled pursuant to the Merger Agreement in exchange for a cash payment of $21.01 per share subject to the option. This per share price represents the difference between the applicable exercise price of the option and the per share merger consideration of $60.10.</footnote>
        <footnote id="F10">Represents the disposition of options, which provided for vesting of 1/4th of the shares subject to the option on February 6, 2015 and 1/48th each month thereafter. The options were cancelled pursuant to the Merger Agreement in exchange for a cash payment of $17.64 per share subject to the option. This per share price represents the difference between the applicable exercise price of the option and the per share merger consideration of $60.10.</footnote>
        <footnote id="F11">Represents the disposition of options, which provided for vesting of 1/4th of the shares subject to the option on February 3, 2016 and 1/48th each month thereafter. The options were cancelled pursuant to the Merger Agreement in exchange for a cash payment of $11.38 per share subject to the option. This per share price represents the difference between the applicable exercise price of the option and the per share merger consideration of $60.10.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jason W. Bliss, Attorney-in-Fact</signatureName>
        <signatureDate>2016-02-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
