YULATOOLS · Developer tools

Tools for code, data and web development

Find JSON formatting, Base64 conversion, UUID generation, regex testing, hash calculation and URL helpers in one collection. These tools can speed up debugging, test-data preparation and first drafts; verify output in the target language or application before using it in production.

Data handling varies by tool. Many transformations run in the browser, while IP lookup and an optional API client use the network. Read each page’s privacy note. Do not paste real access tokens, passwords or customer records into a public tool.

A practical workflow is to inspect the input format, perform one transformation, then validate the output in the target application. For example, check JSON against a schema and test a regular expression with both expected and unexpected input. The category links make the next related task easy to find. Read each tool’s limitations and privacy note, and keep real credentials out of sample data.

Related categories: Text tools · Design tools

Selected tools in English

SHA-256 & SHA-1 Text Hash Generator OnlineGenerate a SHA-256 or legacy SHA-1 digest for text with your browser's Web Crypto API. This tool does not hash files. JWT Decoder: Inspect Token Header and PayloadDecode a JWT header and payload as readable JSON. Decoding does not verify the signature or prove that a token is trusted. Online JSON Formatter and ValidatorFormat, validate and minify JSON online with readable indentation. This formatter does not send your input to a Yula API. JSON to CSV ConverterConvert an array of JSON records into CSV. Review nested fields and delimiter-containing values before exporting. Base64 Encoder & Decoder OnlineEncode text as Base64 or decode a valid Base64 value. Base64 is an encoding, not encryption, and does not protect sensitive data. Regex Tester: Test Regular Expressions OnlineTest a JavaScript regular expression online and inspect highlighted matches. Verify the pattern again in your target runtime. Random Password Generator OnlineGenerate a random password online with a chosen length and character set. Use a unique password for each account and store it in a password manager. UUID v4 & NanoID Generator OnlineGenerate random UUID v4 values or NanoIDs online for test data and applications. Enforce uniqueness in your own system. URL Parser: Inspect a Link and Query ParametersSplit a URL into scheme, host, path and query components. Remove sensitive values before sharing a link. SEO Meta Tag Generator for HTML & Social CardsDraft title, description, canonical, Open Graph and Twitter tags with an optional image. Validate URLs and review the final HTML. Bulk UUID Generator: Create Multiple GUID ValuesGenerate multiple UUIDs for test or sample data. Enforce uniqueness separately in production storage. Password Strength Checker: Review a Test PasswordReview a rough strength indicator based on length and character variety. It cannot check reuse, breaches or a service's protections. Live JavaScript Regex TesterEdit a regular expression and inspect its matches in sample text as you type. Test syntax and performance in your target runtime. CSV to JSON Converter: Turn Rows into ObjectsConvert CSV headers into JSON object fields. Check the delimiter, quotes and sample records before using the output. HTML Entity Encoder and DecoderEncode characters with meaning in HTML syntax or decode valid entity references into readable characters. Text to Binary Converter: UTF-8 Encode & DecodeEncode text as UTF-8 binary bytes or decode complete 8-bit groups. Invalid binary and malformed UTF-8 are rejected. Unix Timestamp Converter: Convert Dates and TimesConvert a Unix timestamp to a date or a local date and time to seconds and milliseconds. Compare local time with UTC. URL Component Encoder and Decoder OnlinePercent-encode a URL query or path component. Keep component encoding separate from encoding an entire URL. JSON Schema Generator from a JSON ExampleCreate a starter JSON Schema from sample data. Review types, required fields and business rules against your real contract. JWT Header and Payload DecoderDecode a three-part JWT header and payload in your browser and inspect its exp time. This tool does not verify signatures or trust. JSON Diff Viewer: Compare Two JSON DocumentsCompare two JSON documents and inspect added, removed or changed fields. Verify paths and value types in the source data.

Browse the full category in Turkish