Text & Code
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files.
Your files stay on your device - processed locally via WebAssembly, never uploaded
Format
Hash Comparison
🔒 All hashing happens in your browser using the Web Crypto API. Nothing is sent anywhere.
Embed this tool on your website
Copy this code to add the Hash Generator to your site for free. It runs entirely in your visitors' browsers - no API key, no usage limits.
<iframe src="https://optipix.art/embed/hash-generator" width="100%" height="600" style="border:1px solid #e4e4e7;border-radius:8px;" title="Hash Generator by OptiPix" loading="lazy"></iframe> <p style="font-size:12px">Free tool by <a href="https://optipix.art/hash-generator">OptiPix Hash Generator</a></p>
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About Hash Generator
Last updated: May 2026
OptiPix Hash Generator beregner kryptografiske hashes af tekst eller filer direkte i din browser. Indtast tekst eller træk og slip en fil for øjeblikkeligt at generere MD5, SHA-1, SHA-256, SHA-384 og SHA-512 hashes samtidigt. Skift mellem små bogstaver hex, store bogstaver hex og Base64 outputformater. Brug HMAC-tilstand med en hemmelig nøgle til keyed-hash message authentication codes. Hash-sammenligningsværktøjet lader dig indsætte to hashes for at verificere, om de matcher – perfekt til filintegritetsverifikation. Hashes opdateres live, mens du skriver. SHA hashes bruger Web Crypto API, der er indbygget i enhver moderne browser; MD5 bruger en medfølgende ren JavaScript-implementering. Intet sendes til nogen server.
How It Works
SHA hashes bruger Web Crypto API's crypto.subtle.digest() metode, som er indbygget i enhver moderne browser. MD5 bruger en medfølgende ren JavaScript-implementering, da Web Crypto API ikke understøtter MD5. Til HMAC bruger værktøjet crypto.subtle.sign() med HMAC-algoritmen.
Use Cases
- •Verificer filintegritet efter download
- •Generer checksums til datavalidering
- •Opret HMAC-signaturer til API-godkendelse
- •Sammenlign hashes for at opdage filændringer
- •Generer hash-digester til forskning i adlagring
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If you find Hash Generator useful, check out these related tools: UUID Generator, Random String Generator, and Base64 Text Encoder / Decoder. All tools run entirely in your browser with no uploads or signups required.
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Frequently Asked Questions
Hvilke hash-algoritmer understøttes?
Kan jeg hashe filer?
Hvad er HMAC-tilstand?
Er MD5 sikker?
Sendes mine data til nogen server?
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