Browser tool
JSON Formatter
Online JSON formatting, syntax validation, and minification; preserves large integers and supports tree view, field paths, diff comparison, and JSON / CSV export.
Format JSONUnderstand the data before changing it
Developer & Data Tools
Format JSON and HTML, convert CSV, inspect URLs and JWTs, test regular expressions, compare text and work with timestamps, hashes and identifiers.
Formatting and data conversion
Inspect API samples, improve readability and export the required format.
Browser tool
HTML Formatter
Format HTML indentation and line breaks for easier reading, copying and downloading, without executing scripts.
Format HTMLBrowser tool
JSON to CSV Converter
Convert JSON, CSV and TSV while preserving large numeric values and SKU strings, with optional spreadsheet text protection.
Open JSON to CSV ConverterEncoding, URLs and expressions
Inspect links and tokens, and test encoding and matching rules.
Browser tool
Base64 Encoder and Decoder
Encode and decode URL components, UTF-8 Base64, Unicode and HTML entities locally.
Open Base64 Encoder and DecoderBrowser tool
URL Query Parser
Inspect a URL's components, query keys, values and repeated parameters.
Open URL Query ParserBrowser tool
Regular Expression Tester
Run JavaScript regex matching, group extraction and replacement in an isolated worker with a timeout.
Open Regular Expression TesterBrowser tool
JWT Decoder
Inspect a JWT header and payload locally, including common expiry claims.
Open JWT DecoderText comparison and bulk cleanup
Find changes, remove duplicate lines and open batches of URLs when needed.
Browser tool
Text Diff Checker
Compare two texts and inspect line-by-line differences locally.
Open Text Diff CheckerBrowser tool
Duplicate Line Remover
Deduplicate text, SKUs or URLs with whitespace, case, Unicode normalization and sorting options.
Open Duplicate Line RemoverBrowser tool
Bulk URL Organizer
Extract HTTP/HTTPS URLs, deduplicate them and create a list of individually openable links.
Open Bulk URL OrganizerTime, identifiers and security utilities
Generate test identifiers, convert timestamps and work with hashes and passwords.
Browser tool
Unix Timestamp Converter
Convert Unix seconds, milliseconds and dates, showing UTC and local time.
Open Unix Timestamp ConverterBrowser tool
Bulk UUID v4 Generator
Generate random UUID v4 identifiers using the browser's secure random-number source.
Open Bulk UUID v4 GeneratorBrowser tool
SHA-256 and SHA-512 Text Hash
Calculate a SHA-256 or SHA-512 digest of UTF-8 text locally.
Open SHA-256 and SHA-512 Text HashBrowser tool
Secure Random Password Generator
Generate passwords using a cryptographically secure browser random source and selected character sets.
Open Secure Random Password GeneratorChoose the right tool
Do I need formatting or a different data format?
JSON and HTML formatting improve readability and help locate problems. Choose JSON-to-CSV when you need tabular data. Formatting, syntax checks and business-data validation are separate tasks; compare the output with the original sample.
How can I investigate a request or token?
Inspect request parameters with the URL and encoding tools, then use JSON, regular expressions and text comparison to locate differences. Decoding a JWT reveals its claims; it does not establish a valid signature or trusted token.
YOUR NEXT STEP
Connect useful tools with your company workflow
Create a company account to configure website monitoring, business email and notifications, and invite your team to work together.
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Already have an account? Open your workspace →Questions about these tools
Should I paste API keys, passwords or production data?
Prefer redacted samples and read each tool’s data-handling notice. A browser-based interface does not establish that all processing stays on your device. Extensions and shared devices also affect confidentiality.
Does formatting HTML execute or validate the page?
Formatting organizes the displayed code. It does not replace a security review or prove identical page behavior. Review scripts, styles and whitespace-sensitive content against the actual rendered page.
What is the difference between hashes, passwords and UUIDs?
Hashes compare content digests and do not recover the source. Password generation produces random candidates that still require secure storage. UUIDs identify objects; they do not grant permissions or establish business-level uniqueness.