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Extract audio from video as MP3, M4A, WAV, FLAC, OGG or Opus. Choose bitrate, sample rate and channels, with loudness normalisation — all in your browser.
Work out the true cost of a loan including processing fees and charges, and see how much of an early EMI is interest rather than principal.
Test how strong a password really is: entropy in bits, the weak patterns found inside it, and how long each named attack would take.
Generate a SHA-256 hash of text or a file in your browser — the current standard for checksums, signatures and integrity checks.
Turn a section of video into an animated GIF with a proper two-pass colour palette. Boomerang and reverse playback, adjustable frame rate and width.
Remove background noise, hiss and hum from a recording with spectral noise reduction. Six presets, a 15-second preview, and it all runs in your browser.
Decode percent-encoded URLs and query strings back into readable text, including form-encoded plus signs.
Decode an SSL certificate and read everything inside it — subject, issuer, validity, every SAN, key details, extensions and fingerprints.
Fetch any live page and audit its meta tags, Open Graph, Twitter cards, headings and images — with a score and prioritised fixes.
Generate hreflang tags for multilingual sites in HTML, XML sitemap or HTTP header form, with invalid codes caught as you type.
Trace every hop between a URL and its final destination, with the status, timing and type of each redirect in the chain.
Check a page's canonical tag and follow it to the target — catching canonical chains, redirects and noindexed targets.
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