The story of WAZA TOOLS since its launch, with new tools, guides and improvements, newest first. Each tool page also lists its own updates at the bottom.
October 2026
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Improved
Based on user feedback, your light or dark choice now stays as you set it. Use the button at the top right to choose Match device, Light or Dark.
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Improved
Improved the Time Calculator: paste a column from Excel or a timesheet to total it, type times in any format (1:30, 1h 30m, 90 min), and get work hours with breaks and overnight shifts, rounding to 15 minutes and more, decimal hours and Excel-ready [h]:mm.
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New
Added Compress Image to Size: pick a target such as 100KB and your photos are compressed to fit in one go, including iPhone HEIC files and batches (saved as a ZIP), with a side-by-side check before saving. Nothing is uploaded.
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Guide
Added a guide: How to Make an Image Smaller Than 100KB (or Any Size) for Upload Forms.
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Improved
Tools that open photos now accept iPhone HEIC photos directly: Image Cropper, Image Compressor, Mosaic & Blur, Image Filter, Watermark, Background Remover, EXIF Viewer, Image to PDF, QR Code Reader, Color Picker, Favicon Generator and more.
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Improved
EXIF Viewer & Remover now removes location and other data from JPEG photos without re-compressing them, so the quality stays the same (the orientation is kept).
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Improved
Decimal Base Converter has its own page again: convert fractions such as 0.1 to binary, octal and hex, with repeating digits and every step shown.
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New
Added Time Period Converter: convert days, weeks, months, years and hours at once, with answers in decimals and everyday words (a month is about 4.35 weeks; 1,000 days is about 2 years 9 months), combined inputs such as 14 weeks 6 days, and charts.
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Guide
Added a guide: How Many Weeks Are in a Month? Days, Weeks, Months and Years Conversion Chart.
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Improved
Weeks and days-from-date calculations now have their own pages: Weeks Calculator and Days From Date Calculator.
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New
Added Image Rotator: rotate images 90° or 180°, flip them, and straighten tilted photos at any angle, in bulk and without uploading.
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Improved
You can now enter any width in Video to GIF Converter and any image size in QR Code Generator, besides the preset choices.
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New
Added HEIC to JPG Converter: convert iPhone HEIC photos to JPG or PNG in bulk, check them at full size and rotate them the right way up, all without uploading.
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Improved
Upgraded Image Resizer: resize many images at once, choose the output format (JPG, PNG, WebP) and quality (up to 100%), and save them all as a ZIP. HEIC photos are supported and downscaling is sharper.
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Improved
Image Converter now reads iPhone HEIC photos and saves all results as a single ZIP.
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Guide
Added guides: What Is HEIC? How to Convert iPhone Photos to JPG for Uploads and How to Rotate and Flip Photos: Fix Sideways and Tilted Images.
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Improved
Finance tools updated for Japan’s 2026 tax reform and FY2026 social insurance rates: Take-Home Pay Calculator, Furusato Tax Limit Simulator, Resident Tax Calculator, Bonus Take-Home Calculator, Freelance Tax Estimator, Crypto & FX Tax Calculator, iDeCo Tax-Saving Simulator and Mortgage Calculator.
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Improved
Anniversary Calculator now has monthly anniversaries, a day-counting option, countdowns to future dates, anniversary card images, calendar export, share links and saved anniversaries.
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Improved
Every tool page now has a link for feedback and bug reports, plus its own update history.
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New
Added Dog & Cat Age Calculator for small to giant dogs and cats, comparing the AKC, UCSD and Japanese Ministry of the Environment methods, with a chart.
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Improved
Age Calculator now shows the school grade in Japan, your next half birthday, legal age milestones under Japanese rules (pension, late-stage elderly care) and ready-to-copy Excel formulas.
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Improved
Day of Week Calculator now shows rokuyo and the old lunar date, and Japanese holidays are correct for past years too. Calendar Maker can show rokuyo, Business Day Calculator covers holidays from 1948 to 2100, and Date Calculator and Countdown Timer use the same holiday data.
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Improved
Added a Valentine’s Day preset to Countdown Timer.
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Guide
Added a guide: Dog & Cat Years to Human Years: Why ×7 Is Wrong (Charts by Size).
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Guide
Updated guides for Japan’s 2026 tax changes: How the Furusato Nozei Limit Is Decided: System, Income & Family Caps, iDeCo Tax Benefits and Drawbacks Explained, With Limits by Occupation, New NISA vs iDeCo: Differences, Which to Prioritize, and Using Both and Crypto Tax Basics in Japan: Miscellaneous Income and Filing Explained.
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Relaunch
WAZA TOOLS has been fully renewed: 253 tools, plus 162 guides explaining how things work and how to use them.
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New
New video tools: YouTube Chapter Maker, YouTube Thumbnail Preview, YouTube Embed Code Generator, Video Frame Extractor, Video to GIF Converter.
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Improved
Based on user feedback, presets in YouTube Repeat Player now have optional names (auto-named “Preset 1”, …) and can be renamed later.
March 2026
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New
Expanded to 51 tools, adding six finance tools (Take-Home Pay Calculator, NISA Investment Simulator, Compound Interest Calculator, Mortgage Calculator, Dividend Calculator and FIRE Calculator), date tools such as Age Calculator, Anniversary Calculator and Countdown Timer, and Random Picker Wheel.
February 2026
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New
Added YouTube Repeat Player and a new Video category.
December 2025
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Launch
WAZA TOOLS launched in Japanese and English with just over 20 free tools, including Character Counter, JSON Formatter and QR Code Generator.
Feedback
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