Validate, pretty print or minify structured data documents, flatten nested documents to dot notation and back, compare two documents field by field, and convert arrays of records to and from spreadsheet friendly text.

Convert lightweight markup documents into clean sanitized web markup, styled print ready documents or editable word processor files, with real heading styles, lists, tables and code blocks.

Calculate full loan amortization schedules using fixed installment and constant amortization systems. Returns installments, interest, principal and totals for any amount, rate and term.

EPC label, EPBD MEPS compliance, and stranding-risk screening across 8 EU markets — primary energy, solar obligation, renovation cost, and cap-rate discount modelling for lenders and asset managers.

A globally usable mortgage and loan calculator supporting multiple currencies. Covers monthly repayments, full amortisation schedules, affordability reverse-calculation, early repayment savings, side-by-side comparison, total cost of ownership, APR, debt-to-income ratio, stamp duty estimates, refinance break-even, balloon payments, interest-only periods, loan consolidation, and biweekly payment options. Pure maths — no external data sources. Pass any currency code (USD, GBP, EUR, ZAR, AUD, etc.) for localised display.

Instantly revolutionize your appearance with the Hair Switch API. Effortlessly transform hairstyles across apps, websites, and virtual platforms for personalized makeovers.

Examines any text and provides a coherence score, assessing the logic, consistency, and clarity of the content.

Examines any text and provides a coherence percentage, assessing the logical flow, consistency, and clarity of the content.

EU-Compliance: Digital Product Passport (DPP) Immutable QR Engine. Guaranteed 10-year URL persistence for Textile and Battery ESPR mandates (March 2026). High-error-correction QR generation optimized for industrial label printing. Frankfurt (EU-Central) data residency.

The Aspect Ratio Restoring API automatically detects distorted images and restores their content to their original proportions. By identifying over-stretched images, this API provides an automated solution to correct aspect ratio issues, ensuring the image maintains its intended appearance.

Enhance images with intelligent aesthetic evaluation and optimized cropping using our Intelligent Composition API.

With this API you will be able to resize any image you want and get them with all the propper sizes for the social media service you want.

Automatically restore overly stretched images to their correct proportions with the Stretched Image Restoration API.

The Stable Diffusion API leverages the cutting-edge Stable Diffusion v2.1 model to generate top-notch images. With this API, users can access the latest advancements in image generation technology, resulting in high-quality visuals for a wide range of applications.

Instantly validate how any URL will appear when shared on Facebook, LinkedIn, Twitter, and WhatsApp. Returns a full JSON report with platform-specific scores, broken tag detection, image dimension checks, and plain-English fix instructions — all in a single API call.

QA test fixtures and CI seed data with reproducible seeds, so pinned test runs return identical rows every time. 16 field types, each value explaining what it breaks.

Malformed and hostile string test data for input handling: control characters, null bytes, encoding edge cases. Reproducible seeds, and every value explains what it breaks.

Integer and floating-point edge cases: int32/int64 limits, NaN, infinity, denormals, and IEEE 754 rounding. Deterministic seeds, and every value explains what it breaks.

Boundary value test data for off-by-one bugs: int32 and int64 limits, max-length strings, empty values. Deterministic seeds, and every value explains what it breaks.

Unicode test data for internationalization testing: combining marks, bidi overrides, ZWJ emoji, homoglyphs. Deterministic seeds, and every value explains what it breaks.

Date and time edge cases: Feb 29, DST gaps, year 2038, leap seconds, and quarter-hour UTC offsets. Reproducible seeds, and every value explains what it breaks.

Streamline complex information using the Technical Writing Technical Writing Readability API for clear communication.

Ensure your legal documents are crystal clear with the Legal Compliance Legal Compliance Readability API.

Optimize your SEO strategy by improving readability with the SEO Optimization SEO Optimization Readability API.

Make your content accessible to all users with the Accessibility Compliance Accessibility Compliance Readability API.