Devtools

Developer tools I actually use.

A growing collection of small, fast utilities: formatters, encoders, generators and more. Almost all of them run entirely in your browser; the few that cannot, like the speed test and the API client, say so on the tool itself.

Web

JWT Decoder

Decode, verify and sign JWTs. JWKS support, claim reference and a security review.

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Encode

Base64 Encode / Decode

Encode or decode Base64: text or files, URL-safe, data URLs, with a hex view.

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Format

JSON Formatter

Beautify, minify, query with JSONPath, sort keys, and generate TypeScript or Go types.

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Format

XML Formatter

Beautify, minify, query with XPath, and convert XML to JSON.

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Crypto

Hash & HMAC Generator

Compute and verify HMACs and plain hashes (MD5, SHA-1/256/384/512) over text or a file.

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Web

SAML Decoder

Decode and encode SAML, inspect assertions and certificates, and review them for problems.

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Generate

QR Code Generator

Generate QR codes for URLs, Wi-Fi, contacts, events and more, with scannability checks.

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Web

API Client

Send HTTP requests with auth, params and body, then copy them as cURL, fetch, wget or HTTPie.

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Web

URL Shortener

Shorten a long URL to an s.bitsar.net link, with a QR code and safety checks.

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Network

Internet Speed Test

Measure download, upload, idle and loaded latency, with bufferbloat grading, your IP and your location.

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105

Generate

UUID Generator

Generate and inspect UUIDs (v1/v3/v4/v5/v6/v7), ULIDs and NanoIDs.

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