Free apps

Free Windows utility apps that solve real desktop work.

ArystoTech Free Apps is a local-first lineup of six practical utilities, plus the free PySuperApp bundle. This is one way ArystoTech Software gives back: useful desktop tools, free to use, with an open invitation to pay it forward if they save you time.

Download PySuperApp Browse Apps

Current bundle build: PySuperApp.exe. Every app on this page is a free download.

6 free apps Each focused on one practical workflow.
100% free No license required to use them.
PySuperApp One free bundle app for all 6 tools.
See downloads See included apps Terms and Conditions Read the EULA
Downloading, installing, copying, or using any free app or the free PySuperApp bundle signifies agreement to the Free Apps Terms and Conditions and the Free Apps EULA.
Downloads

Download one app or get the full free bundle.

Every utility on this page is free. Download the single tool you need, or get PySuperApp if you want the whole lineup in one desktop app. If the tools earn a place in your workflow, the support link is there quietly.

Standalone apps

Download each app individually for free

Free one app at a time

Best for users who only want one focused utility, like bulk renaming, image conversion, or log extraction, without installing the full bundle.

  • One focused app per workflow.
  • Good fit when you only need one utility.
  • Free desktop downloads with no paid unlocks.
  • Still points users back to ArystoTech and the full bundle.
See Standalone Downloads

Free utility apps for file, image, JSON/XML, and log work.

PySuperApp bundle

Download the full 6-app bundle for free

Free all six tools together

Best for users who want the entire toolkit in one desktop app, with one install and one place to move between workflows.

  • All 6 utility workflows in one desktop shell.
  • Fastest way to try the whole ArystoTech lineup.
  • Good entry point for users who may want more tools later.
  • Includes the About tab with website and support links.
  • Local-first Windows app with no paid gate.
Download PySuperApp

Free all-in-one desktop app with every included tool unlocked.

App lineup

Each included tool, explained clearly.

Each card below is a free standalone download, and every one of them is also included in the free PySuperApp bundle.

Bundle overview

PySuperApp

The bundle app groups every utility workflow into one consistent interface, so users can move from file cleanup to image compression, image conversion, JSON/XML formatting, and log work without juggling separate installers.

  • Launches all six included apps from one home experience instead of separate executables.
  • Keeps the lineup easy to understand: one free bundle app, six focused workflows.
  • Acts as the main give-back download and first touchpoint for new ArystoTech users.
Best for: Anyone who wants the entire toolkit in one free desktop app.
PySuperApp icon
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PyBulkRenamer icon

PyBulkRenamer

Free app

Batch renaming focused on previewing every filename change before anything is applied.

  • Shows original and proposed filenames side by side.
  • Supports prefix, suffix, and find-and-replace rules together.
  • Stops conflicting names from being applied blindly.
Best for: Cleaning up large folders and standardizing naming patterns safely. Also included in PySuperApp.
Download EXE
PyImageSquisher icon

PyImageSquisher

Free app

Local image compression and conversion for reducing size without leaving the desktop.

  • Exports to JPEG, PNG, or WEBP with format-aware handling.
  • Lets users set maximum width and output quality.
  • Reports the space saved after processing.
Best for: Shrinking image folders for storage, sharing, or web delivery. Also included in PySuperApp.
Download EXE
PyImageConverter icon

PyImageConverter

Free app

Format-aware image conversion for one-off exports or drag-and-drop bulk queues, including SVG inputs.

  • Converts one image at a time or processes an entire batch queue recursively.
  • Supports SVG rendering, runtime-detected image formats, and automatic unique output names.
  • Includes quality, matte, icon canvas, and smaller-file optimization controls where they matter.
Best for: Re-exporting mixed image sets into the right format without a separate desktop converter. Also included in PySuperApp.
Download EXE
PyJson2CsvConverter icon

PyJson2CsvConverter

Free app

JSON-to-CSV conversion that works from files or pasted payloads and flattens nested data.

  • Accepts either a JSON file or direct pasted JSON text.
  • Tries to detect useful record arrays inside nested structures.
  • Exports flattened rows with configurable delimiters.
Best for: Turning API payloads or exports into spreadsheet-friendly data. Also included in PySuperApp.
Download EXE
PyJsonXmlFormatter icon

PyJsonXmlFormatter

Free app

Format, minify, and validate JSON or XML instantly from one focused desktop utility.

  • Formats JSON or XML with readable indentation.
  • Minifies JSON or XML when compact output matters more.
  • Validates input and warns the user when the content is invalid.
Best for: Fast JSON or XML cleanup while debugging, documenting, or validating payloads. Also included in PySuperApp.
Download EXE
PyLogExtractor icon

PyLogExtractor

Free app

Targeted log searching for pulling matching lines out of large files with text or regex rules.

  • Scans line by line instead of loading the full file into memory.
  • Supports both plain text searches and compiled regular expressions.
  • Writes matches to a separate output file for review.
Best for: Isolating errors, codes, IPs, or other patterns from large logs. Also included in PySuperApp.
Download EXE

These apps are part of ArystoTech Software's give-back approach: ship practical tools for free, help people get useful work done, and let the value speak first. If one of them saves you time, you can pay it forward at buymeacoffee.com/arystotech or visit arystotech.com/productivity_suite for updates.

Pay it forward