SF-OS(Simple Fake OS)

A free tool that aligns scattered fonts, full-width/half-width characters, and position misalignments in PowerPoint materials with one click

Don't entrust images to suspicious upload conversion services. WebP→JPG/PNG Convert WebP to JPG and PNG. Unlike upload-type services, images are processed only on your device. Ideal for confidential screenshots and Excel paste operations. 【Operating Environment】Completely browser-based (no registration required). Images are not sent to our servers by design. 【Tags】WebP JPG PNG image conversion browser-based document creation data processing ※Screenshots will be added at a later date

A tool that detects AI-like clichéd phrases just by pasting an article, usable for self-checking before submission

Paste and detect/clean "invisible characters" that sneak in through copy-paste. Visualize the cause of form rejections. Does not send.

A powerful Markdown editor with WYSIWYG split-screen, CodeMirror integration, bidirectional synchronization, and LaTeX formula support.

This is an AI chat using a built-in browser LLM. There are no usage restrictions, and you can chat for free as much as you want.

A lightweight and simple offline music player that works without internet. You can use playlist management, comfortable playback, and intuitive operation all together.

By launching it on a PC on the same network, you can perform keyboard operations from another PC or smartphone. I think this can be used for games with many key operations like DCS World, or when you want to operate without touching the keyboard! When you want to place only the necessary keys!

Check if dangerous API keys are mixed in code made by AI, just paste it to check. Input is not sent.

Display a clock that you see every day in pixel font with your own personal style

敬語、もう悩まない。LINE・メール・SNSで送る前の文章を、AIがワンタップで丁寧語・翻訳・絵文字追加に変換する無料Androidアプリ。

Free! Combine and extract PDF pages with bookmarks. Works on any device with a browser display. Download ZIP for complete local use. You can also open the URL and use it locally as-is for processing.

Let's acquire a visual sense of time.

Software that detects duplicate and similar image and PDF files

This is software that can protect and restore files in its own unique format. You can both protect and restore with just this one tool. It was created as a harassment-themed toy project. However, the contents are quite serious. It creates a .spy file by simply adding a bit of information to the original file. Features (quoted from GitHub README) Multi-stage encryption: A robust process combining classical Vigenère cipher (byte-level XOR) and modern AES-256-GCM. Full-width shared key: Access key generation using 16 full-width characters. Intentionally reduces convenience to create tension during input. Self-destruct function: If the specified expiration date is exceeded by even 1 second, or if the key is entered incorrectly 3 times, the file is overwritten 3 times with random data and physically destroyed. Evidence destruction: Upon successful restoration, the original encrypted file (.spy) is automatically physically destroyed, leaving no trace.

Ultra-lightweight HTML AI chat that runs only in a browser - beta version now available I'm not very smart.

COBOL assets to Java. Migration support OSS compatible with 10 types of vendor dialects

A household budget checker for single-person living that allows you to see at a glance the ratio of expenses to income and price-increase categories without having to keep a detailed household account book.

A household budget checker for single-person living that allows you to see at a glance the ratio of expenses to income and price-increase categories without having to keep a detailed household account book.

iPhone派？Android派？あなたの「運命のスマホ」を導き出すマッチング診断！楽しく最適スマホが見つかります！

An AI team consultation app where you can organize your thoughts and concerns while talking with AIs that have distinct personalities.

I will record the learning time.

遅いWi-Fiや通信トラブルを、症状から整理するiPhone・iPad向け診断アプリ

Make Discord more convenient.