I ask because I have not a version that has the phrase "through myself" in that verse:
Isaiah 44:24
(AFV)
Thus says the LORD your Redeemer, and He Who formed you from the womb, "I am the LORD Who makes all things; Who stretches out the heavens alone; Who spreads abroad the earth by Myself;
(ASV)
Thus saith Jehovah, thy Redeemer, and he that formed thee from the womb: I am Jehovah, that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth (who is with me?);
(BBE)
The Lord, who has taken up your cause, and who gave you life in your mother's body, says, I am the Lord who makes all things; stretching out the heavens by myself, and giving the earth its limits; who was with me?
(Bishops)
Thus saith the Lorde thy redeemer, euen he that fassioned thee from thy mothers wombe: I the Lorde do all thinges my selfe alone, I only spreade out the heauens, and I only haue laide abrode the earth by my owne selfe.
(Darby)
Thus saith Jehovah, thy Redeemer, and he that formed thee from the womb: I am Jehovah, the maker of all things; who alone stretched out the heavens, who did spread forth the earth by myself;
(DRB)
Thus saith the Lord thy redeemer, and thy maker, from the womb: I am the Lord, that make all things, that alone stretch out the heavens, that established the earth, and there is none with me.
(ERV)
The one who rescued you is the LORD, the one who formed you in your mother's womb. He says, "I, the LORD, made everything. I put the skies there myself. I spread out the earth before me."
(Geneva)
Thus sayeth the Lord thy redeemer and he that formed thee from the wombe, I am the Lord, that made all things, that spred out the heauens alone, and stretched out the earth by my selfe.
(GNB)
"I am the LORD, your savior; I am the one who created you. I am the LORD, the Creator of all things. I alone stretched out the heavens; when I made the earth, no one helped me.
(ISV)
"This is what the LORD says, your Redeemer and the one who formed you in the womb: "I am the LORD who has made everything, who alone stretched out the heavens, who spread out the earth—Who was with me at that time?—,
(KJV)
Thus saith the LORD, thy redeemer, and he that formed thee from the womb, I am the LORD that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by myself;
(KJV-1611)
Thus saith the Lord thy redeemer, and he that formed thee from the wombe; I am the Lord that maketh all things, that stretcheth forth the heauens alone, that spreadeth abroad the earth by my selfe:
(KJVA)
Thus saith the LORD, thy redeemer, and he that formed thee from the womb, I am the LORD that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by myself;
(KJV-BRG)
Thus saith the LORD, thy redeemer, and he that formed thee from the womb, I am the LORD that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by myself;
(LEB)
Thus says Yahweh, your redeemer, and he who formed you in the womb: "I am Yahweh, who made everything, who stretched out the heavens alone, who spread out the earth—who was with me?—
(LITV)
So says Jehovah, your Redeemer and your Former from the womb; I am Jehovah who makes all things; stretching out the heavens, I alone spreading out the heavens. Who was with Me,
(LSV)
Thus said YHWH, your Redeemer, || And your Framer from the womb: “I [am] YHWH, doing all things, || Stretching out the heavens by Myself, || Spreading out the earth—who [is] with Me?
(MKJV)
So says Jehovah, your Redeemer, and He who formed you from the womb, I am Jehovah who makes all things; who stretches out the heavens alone; who spreads out the earth; who was with Me?
(RV)
Thus saith the LORD, thy redeemer, and he that formed thee from the womb: I am the LORD, that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth; who is with me?
(TLV)
Thus says Adonai, your Redeemer, who formed you from the womb: “I am Adonai, Maker of all things, stretching out the heavens alone, spreading the earth abroad by Myself,
(TS2009)
Thus said יהוה, your Redeemer, and He who formed you from the womb, “I am יהוה, doing all, stretching out the heavens all alone, spreading out the earth, with none beside Me,
(WEB)
Yahweh, your Redeemer, and he who formed you from the womb says: “I am Yahweh, who makes all things; who alone stretches out the heavens; who spreads out the earth by myself;
(WEBA)
Yahweh, your Redeemer, and he who formed you from the womb says: “I am Yahweh, who makes all things; who alone stretches out the heavens; who spreads out the earth by myself;
(Webster)
Thus saith the LORD thy Redeemer, and he that formed thee from the womb, I am the LORD that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by myself:
(YLT)
Thus said Jehovah, thy redeemer, And thy framer from the womb: 'I am Jehovah, doing all things, Stretching out the heavens by Myself, Spreading out the earth—who is with Me?