#conversion

Matemáticas de dureza del agua como API, calculadas local y determinísticamente. El endpoint convert convierte un valor de dureza entre todas las unidades comunes — partes por millón / miligramos por litro como carbonato de calcio, granos por galón estadounidense, grados alemanes (°dH), grados franceses (°f), grados ingleses o Clark, y milimoles por litro — pasando todo a través de ppm (1 gpg = 17.118 ppm, 1 °dH = 17.848, 1 °f = 10, 1 °Clark = 14.254), y clasifica el resultado. El endpoint classify etiqueta un valor como blanda, moderadamente dura, dura o muy dura en la escala USGS/OMS. El endpoint softener dimensiona un ablandador de agua: a partir de la dureza y el uso de agua del hogar calcula los granos de dureza eliminados por día y la capacidad de granos necesaria entre regeneraciones. Todo se calcula local y determinísticamente, por lo que es instantáneo y privado. Ideal para herramientas de tratamiento de agua y plomería, aplicaciones de acuarios y piscinas, dimensionamiento de electrodomésticos y ablandadores, y software para hogar y laboratorio. Cálculo local puro — sin clave, sin servicio de terceros, instantáneo. En vivo, nada almacenado. 3 endpoints. Esto es conversión de dureza del agua; para conversión general de unidades use una API de conversión de unidades y para dosificación de piscinas use una API de piscinas.

api.oanor.com/hardness-api

Render tabular data as an HTML table, and parse an HTML table back into data. The render endpoint turns a JSON array (of objects, or of arrays) or CSV into a clean, semantic <table> with <thead>/<tbody>, an optional caption and CSS class — every cell HTML-escaped so it is safe to embed. The parse endpoint does the reverse: give it any HTML containing a table and get back the headers, the rows and a ready-to-use JSON array of objects, with entities decoded and tags stripped from each cell. Perfect for emails and reports, dashboards and admin screens, and scraping or migrating tabular content. Pure local computation — no key, no third-party service, instant; up to 2 MB via POST. Live, nothing stored. 3 endpoints. Distinct from Markdown/ASCII table rendering and from generic HTML extraction.

api.oanor.com/htmltable-api

Recipe and kitchen conversions as an API. Convert between volume units (teaspoon, tablespoon, cup, fl-oz, ml, litre, pint, quart, gallon) and between mass units (gram, kilogram, ounce, pound) — and, crucially, between volume and mass for a specific ingredient using its density, so 1 cup of all-purpose flour ≈ 125 g, 1 cup of granulated sugar ≈ 200 g and 1 cup of water ≈ 237 g. 30 common ingredients are built in (flours, sugars, butter, oils, honey, rice, oats, cocoa, cornstarch and more), each with its grams-per-cup. Perfect for recipe apps, scaling and "metric vs cups" conversion, shopping lists and meal-prep tools. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. Distinct from general physical unit conversion, which has no ingredient densities.

api.oanor.com/cooking-api

Converti tra file di configurazione INI e JSON, in entrambe le direzioni. L'endpoint parse legge testo INI — sezioni ([section]), sezioni annidate ([database.replica]), coppie chiave=valore, commenti e chiavi ripetute (array) — in un oggetto JSON pulito; l'endpoint stringify trasforma un oggetto JSON in un file INI correttamente formattato. INI è il formato di configurazione utilizzato da Git (.gitconfig), PHP (php.ini), unità systemd, voci desktop, tox/setup.cfg, molti strumenti CLI e software Windows. Perfetto per modificare la configurazione a livello di programmazione, migrare impostazioni tra formati e leggere configurazioni in ambienti che supportano solo JSON. Calcolo puramente locale — nessuna chiave, nessun servizio di terze parti, istantaneo; invia file grandi tramite POST. Live, nulla viene memorizzato. 3 endpoint. Completa i convertitori YAML, TOML, CSV e XML ed è distinto da ciascuno.

api.oanor.com/ini-api

Live & historical foreign-exchange rates from the European Central Bank: latest rates, historical lookups, time-series and currency conversion across 30+ currencies.

api.oanor.com/currency-api