Hex to Decimal
Paste a hex number (with or without an 0x prefix) and instantly get its decimal value, plus the binary and octal representations for free. Uses BigInt under the hood so values much larger than JavaScript's Number.MAX_SAFE_INTEGER work fine — useful for inspecting memory addresses, hashes, or large protocol fields. Runs entirely in your browser; nothing leaves your machine.
Privacy
Runs entirely in your browser — nothing is sent to any server.
Cost
Free. No sign-up, no watermark.
Type
Converter
Related tools
Tools that work with the same formats — most users open one of these next.
QR Code Reader
Scan a QR code from any image and decode it to text — free, online, runs entirely in your browser.
QR Code Generator
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File to Hex Dump
Convert any file's bytes to a hex dump (with ASCII sidecar), plain hex, C array or comma-separated bytes.
Hex to Binary File
Parse a hex dump or hex string back into a binary file — strips offsets, ASCII columns, prefixes and separators automatically.
Wi-Fi QR Code Generator
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Generate a QR code that contains a digital business card (vCard) — scanning it lets the phone save the contact in one tap.
Frequently asked
Is Hex to Decimal free to use?
Yes. Hex to Decimal is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.
Do my files and data stay private?
Yes — Hex to Decimal runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How does Hex to Decimal work?
Open Hex to Decimal, paste or fill in the input fields, and the result updates instantly. Everything runs in your browser — no upload, no waiting.
Which browsers does Hex to Decimal support?
Any modern browser works — Chrome, Firefox, Safari, and Edge on desktop and mobile. Hex to Decimal uses standard web APIs and does not require any plugin, extension, or sign-up.