Developer Tools APIs.
Developer tool APIs are the small utilities every service ends up needing — format conversion, IDs, hashes, token decoding, DNS and WHOIS lookups. Hosted so they don't become twelve copy-pasted helpers across your repos.
Also called utility APIs, dev utility APIs or helper APIs90 services in this categoryDeveloper Tools APIs
90 servicesConvert Number Bases API
Convert integer strings between bases 2 and 36, with auto-detection for 0x, 0o, and 0b prefixes. Useful for radix formatting and mixed-base input.
JWT Decoder API
Decode a JWT and inspect its header, payload, and claims without verifying the signature. Built for debugging auth flows and token contents.
Generate IDs In Batch API
Generate batches of UUIDs, ULIDs, NanoIDs, hex strings, or short tokens in one call. Built for test data, fixtures, and temporary identifiers.
Convert Color Formats API
Convert a color string in hex, RGB, or HSL and get structured JSON back. Useful for palette generation, accessibility checks, and formatting.
Split Excel API
Split .xlsx and .xlsm files into one workbook per value group. Track job status and progress, then download the finished split outputs.
FlowDocsVerifiedHosted on ApyHubConvert Case & Slug from Text API
Convert text into slug, camelCase, snake_case, and other common formats. Useful for URLs, identifiers, headings, and general text normalisation.
Resolve Short URL API
Resolve shortened URLs to their final destination. Control redirect hops and timeout for link checks, moderation, analytics, and normalization.
Dosvak LLCResume Parsing & Analysis API
Parse resume files or raw text into structured output. Built for ATS pipelines, first-pass screening, and candidate data enrichment workflows.
Dosvak LLCParse & Normalize US Address API
Address parsing API for US addresses: send one address line, get house number, street, city, state, ZIP and a normalized string. Free tier, no card.
Dosvak LLCPhone Number Formatter API
Parse a phone number into E.164, international, and national formats. Returns validity plus country and region details for storage and display.
Dosvak LLCEmail Syntax Validator API
Validate an email address by syntax alone and get the local part, domain, and a valid flag. Built for fast format checks before signup.
Dosvak LLCGenerate UUID API
Generate version 1 or version 4 UUIDs with a single GET request. Returns the UUID string and version for database keys, tests, and services.
Dosvak LLCWhich Developer Tools API do you need?
The question you arrived with, and the endpoint that answers it.