Trexmi
Browser-based developer tools for JSON, text, encoding, hashing, DNS and SEO tasks. No account needed.
Browser-based developer tools for JSON, text, encoding, hashing, DNS and SEO tasks. No account needed.
This page is designed to help you find out whether Trexmi is good and if it is the right choice for you.
Trexmi is a collection of 227 focused developer utilities that run in the browser, with no account required for everyday use.
Most tools process data locally: JSON formatting, validation, sorting and conversion; text transforms, counters and extraction; Base64, URL and HTML encoding; hashing and checksums; regular expression testing. For these, the input never leaves the device — there is no upload step and no server round trip, so large payloads are handled at typing speed.
Network utilities are the exception and are queried server-side by necessity: DNS and reverse DNS lookups, WHOIS, MX and TXT records, port checks, SSL certificate inspection, HTTP header and redirect-chain checks, sitemap and robots.txt validation.
Also included are converters aimed at current API and AI work: JSON to TypeScript, Zod, Pydantic, Go, Kotlin and other targets; cURL to Python, Go, PHP and fetch; MCP tool schema generation and validation; OpenAI function schema generation; JSON Pointer, JSONPath and XPath testers; cron expression parsing; JWT decoding; and SEO helpers such as hreflang, canonical and structured-data checks.
Each tool has its own page with worked examples and notes on edge cases, rather than a single dashboard with a dropdown.
Trexmi itself is closed source, but its text-processing core was extracted and released separately under MIT as php-text-parity on npm: https://github.com/igorayao/php-text-parity
A paid tier raises the ceilings for very large inputs and bulk work. The free tier has no daily run limit on local tools.
Listed in
Tools
227 utilities across developer, text, encoding, SEO and network categories
Processing
Runs in the browser for JSON, text, encoding, hashing and regex — input never leaves the device
Account
Not required for everyday use; no daily run limit on local tools
JSON
Format, validate, minify, sort, JSONPath, JSON Pointer, schema validation
Converters
JSON to TypeScript, Zod, Pydantic, Go, Kotlin; cURL to Python, Go, PHP, fetch
AI and API tooling
MCP tool schema generation and validation, OpenAI function schema, token counting
Network
DNS, reverse DNS, WHOIS, MX, TXT, port checks, SSL certificates, HTTP headers, redirect chains
SEO
Sitemap, robots.txt, canonical and hreflang validation
Open source core
Text processing published under MIT as php-text-parity on npm
Two things. First, most tools run entirely in the browser — JSON, text, encoding, hashing and regex never send input to a server, so there is no upload step and no round trip. Second, every utility has its own page with worked examples and notes on edge cases, rather than a single dashboard hiding 200 tools behind a dropdown. Its text-processing core has been extracted and released separately under MIT.
If the work is a one-off format or decode, most established tools handle it fine. Trexmi is a better fit when the data should not leave the machine, when the payload is large enough that a server round trip is noticeable, or when the task is newer than the incumbents cover — MCP tool schemas, OpenAI function schemas, JSON to Zod or Pydantic, cURL conversion. It is also signup-free with no daily limits on local tools.
Developers and technical staff doing everyday data work: inspecting API responses, converting between formats, generating types from JSON, decoding tokens, checking DNS and TLS, and validating sitemaps or structured data. Also people building on LLMs who need tool schemas and token estimates.
It started as a set of scripts kept around for repeated tasks — formatting JSON, converting feeds, cleaning text — and turned into a site once the same problems kept coming back. The processing later moved from the server into the browser, which removed the latency and meant the data no longer had to be trusted to anyone. That port was verified byte for byte against the original PHP and released as an open-source library.
PHP on the server, vanilla JavaScript on the client with no framework, WordPress as the content and routing layer. Browser-side processing uses standard platform APIs — Intl.Segmenter for grapheme handling, TextEncoder for UTF-8, Web Crypto where hashing is done locally.
We have collected here some useful links to help you find out if Trexmi is good.
Check the traffic stats of Trexmi on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of Trexmi on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Trexmi's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of Trexmi on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about Trexmi on Reddit. This can help you find out how popualr the product is and what people think about it.
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Is Trexmi good? This is an informative page that will help you find out. Moreover, you can review and discuss Trexmi here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.
