May 2026 Update — 7 New Tools Added to FluxCalc
This week we shipped 7 new tools and a major upgrade to the Aspect Ratio Calculator. FluxCalc now has 18 free tools covering dev, finance, education, medical, and social media workflows.
New Tools
Finals Grade Calculator
Calculate exactly what score you need on your final exam to hit your target grade. Supports letter grades (A+ through D-), weighted percentages, and preset scenarios like "What do I need to pass?" Perfect for students heading into finals season.
Cron Schedule Generator
Build cron expressions visually with natural language input ("Every Monday at 3AM"), a 5-field visual editor, next 5 execution time preview, timezone toggle, and 8 common presets. No more guessing if your cron syntax is correct.
Code Formatter Online
Format JSON, HTML, CSS, JavaScript, SQL, XML, and YAML instantly. Auto-detects language, shows inline error annotations on the exact error line, and supports 2-space or 4-space indentation. Dark editor theme with line numbers.
Instagram Caption Formatter
Format Instagram captions with proper line breaks that actually survive pasting. Real-time character count (0/2200), hashtag count (0/30), mention tracking, and one-click copy. Uses zero-width spaces to preserve your formatting.
Try Instagram Caption Formatter →
CPRS Lab Formatter
A privacy-first tool for VA healthcare providers. Paste raw CPRS lab text and get formatted fishbone diagrams, tables with abnormal value highlighting, and clinical note snippets. Supports CBC, BMP, CMP, ABG, UA, Coag, and Lipid panels. All processing happens locally — no lab data is ever uploaded.
XML Parser Online
An all-in-one XML tool: format, validate, view as tree, minify, convert to JSON, and convert JSON back to XML. Shows exact error line and column, supports file upload, and works with SOAP, WSDL, XSD, RSS, SVG, POM, and RDF files.
Upgraded: Aspect Ratio Calculator
The Aspect Ratio Calculator now includes 12 social media platform presets (Instagram 4:5, Reels 9:16, YouTube 16:9, TikTok, Pinterest 2:3, X/Twitter, Facebook), a live visual rectangle preview, and real-time calculation without needing to click a button.
What's Next
We're working on expanding the XML tool into a full matrix (XML Formatter, XML Validator, XPath Tester as separate SEO pages), adding more CPRS lab panel support, and building out a Creator Toolkit with more social media utilities.
All tools are free, run in your browser, and require no sign-up. If you find them useful, bookmark fluxcalc.com and check back for new additions.