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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-03-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001543916</issuerCik>
        <issuerName>ForgeRock, Inc.</issuerName>
        <issuerTradingSymbol>FORG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001255151</rptOwnerCik>
            <rptOwnerName>MADERA PAUL S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>245 LYTTON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 125</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-03-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>575000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3379737</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-03-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>14200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>83463</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-03-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F6"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>22042</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22042</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On March 8, 2022, Meritech Capital Partners IV L.P. (&quot;MCP IV&quot;) distributed, for no consideration, 575,000 shares of the Issuer's Class A Common Stock (the &quot;MCP IV Shares&quot;) to its limited partners and to Meritech Capital Associates IV L.L.C. (&quot;GP IV&quot;), the general partner of MCP IV, representing each such partner's pro rata interest in such MCP IV Shares. On the same date, GP IV distributed, for no consideration, the MCP IV Shares it received in the distribution by MCP IV to its members, representing each such member's pro rata interest in such MCP IV Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and/or 16a-9 of the Securities Exchange Act of 1934, as amended.</footnote>
        <footnote id="F2">Shares are held by MCP IV. Meritech Capital Associates IV L.L.C. (&quot;GP IV&quot;), the general partner of MCP IV, has sole voting and dispositive power with respect to the shares held by MCP IV. The Reporting Person, George Bischof (&quot;Bischof&quot;), Craig Sherman (&quot;Sherman&quot;) and Rob Ward (&quot;Ward&quot;), the managing members of GP IV, share the voting and dispositive power with respect to the shares held by MCP IV.</footnote>
        <footnote id="F3">The Reporting Person disclaims the existence of a &quot;group&quot; and disclaims beneficial ownership of the securities reported herein, except to the extent of the Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.</footnote>
        <footnote id="F4">On March 8, 2022, Meritech Capital Affiliates IV L.P. (&quot;MCA IV&quot;) distributed, for no consideration, 14,200 shares of the Issuer's Class A Common Stock (the &quot;MCA IV Shares&quot;) to its limited partners and to GP IV, the general partner of MCA IV, representing each such partner's pro rata interest in such MCA IV Shares. On the same date, GP IV distributed, for no consideration, the MCA IV Shares it received in the distribution by MCA IV to its members, representing each such member's pro rata interest in such MCA IV Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and/or 16a-9 of the Securities Exchange Act of 1934, as amended.</footnote>
        <footnote id="F5">Shares are held by MCA IV. GP IV, the general partner of MCA IV, has sole voting and dispositive power with respect to the shares held by MCA IV. The Reporting Person, Bischof, Sherman and Ward, the managing members of GP IV, share the voting and dispositive power with respect to the shares held by MCA IV.</footnote>
        <footnote id="F6">Represents shares received by the Reporting Person pursuant to pro rata distributions by MCP IV, MCA IV and GP IV, for no consideration, of shares of the Issuer's Class A Common Stock to their respective partners or members, as applicable. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and/or 16a-9 of the Securities Exchange Act of 1934, as amended.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Paul S. Madera, /s/ Joel Backman, Attorney-in-Fact</signatureName>
        <signatureDate>2022-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
