Textavia topic

Developer & Data

Practical guides for formatting, debugging, encoding, and moving structured data.

Glass side-by-side panels showing removed red lines and added green lines on a dark gradient background

Feb 28, 2026

Diff checker: compare two texts, ignore whitespace, and understand +/− output

Compare two texts with a diff checker. Learn how to read added and removed lines, ignore whitespace, and review edits safely.

Glass code card with encoded glyphs converting into a clear image thumbnail card

Feb 24, 2026

Base64 to image: decode data URLs, fix broken <img> tags, and download PNG/JPG

Turn a Base64 string into an image file. Learn raw Base64 vs data URLs, common decoding errors, and safe browser-based conversion.

Glass card with UUID-style segmented blocks and highlighted version and variant sections on a dark gradient

Feb 22, 2026

UUID generator: what UUID v4 is, when to use it, and common mistakes

Generate UUID v4 identifiers for databases, APIs, and correlation IDs. Learn what makes UUIDs unique, when they are a good fit, and what not to use them for.

Glass table grid turning into formatted JSON brackets on a blue gradient

Feb 20, 2026

CSV to JSON: convert messy spreadsheets to clean JSON (headers, quotes, and commas)

Convert CSV to a JSON array of objects. Learn how headers, delimiters, and quoted fields work, plus fixes for messy spreadsheet exports.

Glass timestamp glyphs transforming into calendar and clock cards with UTC and local time indicators

Feb 18, 2026

Epoch converter: turn Unix timestamps into readable dates (seconds vs milliseconds)

Convert epoch time to readable dates and back to Unix timestamps. Learn the 10-digit vs 13-digit rule and debug time fields fast.

Glassmorphic cards showing Base64 blocks decoding into readable text on a cyan-purple gradient

Dec 21, 2025

Base64 decode errors: padding, URL-safe Base64, and readable output

If a Base64 string won't decode, the cause is usually padding, Base64URL characters, or a pasted prefix. This guide shows how to fix each fast with Textavia.

Neon glass UI with JSON brackets and error highlights

Dec 14, 2025

Fix JSON parse errors: trailing commas, quotes, and other gotchas

Most JSON errors come from a few predictable mistakes. Here is how to spot them, fix them, and validate the result with Textavia's JSON Formatter.