Productivity Tools

18 tools 100% Client-Side

Time trackers, flashcard study apps, quick note organizers, and workflow helpers.

← Back to all tools

Productivity18 tools

Time trackers, flashcard study apps, quick note organizers, and workflow helpers.

100% Local Only

Showing 18 tools

Local

Neural Network Visualizer & ML Studio

Interactive client-side machine learning playground. Draw shapes or digits on canvas, train an MLP in real time, and visualize live synaptic weights, activations, and loss curves.

developer

Local

Flashcards Study Studio & Spaced Repetition

Master any subject with SM-2 spaced repetition, 3D card flip animations, bulk CSV import/export, text-to-speech audio, and offline progress tracking.

productivity

Local

OmniConverter — Universal Unit Converter

High-precision live conversions across 12 physical dimensions (Length, Weight, Temp, Storage, Volume, Area, Speed, Pressure, Energy, Power) with simultaneous all-unit tables.

productivity

Local

KeyCraft — Typing Speed Test & WPM Analyzer

Monkeytype-level typing test with real-time WPM, accuracy %, smooth caret animations, time/words/quote modes, mechanical key audio, and interactive session graphs.

productivity

Local

React Component Playground & JSX Sandbox

In-browser live React 18 component editor and sandbox with live JSX compilation, split-pane resizer, console interceptor, Prettier formatting, and snippet sharing.

developer

Local

Vue SFC Playground & Composition API Sandbox

In-browser live Vue 3 Single File Component (SFC) editor with <script setup>, Composition API, live rendering, console interceptor, and Prettier formatting.

developer

Local

SQL Playground & SQLite Database Studio

In-browser SQLite database studio running on WebAssembly. Write SQL queries, inspect table schemas, analyze query plans, import/export .sqlite files, and share queries 100% client-side.

developer

Local

AI Resume & Portfolio Builder

Build professional ATS-friendly resumes and responsive personal portfolio websites with AI bullet point improvements, live split-pane preview, customizable templates, and 100% client-side privacy.

productivity

Local

WebSocket Tester & Real-Time Client Studio

Client-side WebSocket testing suite and debugger. Connect to ws:// and wss:// endpoints, transmit JSON/text payloads, inspect live message streams, test heartbeats, and measure latency.

developer

Local

API Tester & REST HTTP Client Studio

In-browser REST API request builder and HTTP client. Test GET, POST, PUT, DELETE endpoints, inspect JSON responses, manage headers, query params, auth, environments, collections, and cURL commands 100% client-side.

developer

Local

PDF Compressor & Document Optimizer

Compress and optimize PDF file size directly in your browser. Downsample embedded images, strip metadata, customize compression levels, and batch download without server uploads.

pdf-documents

Local

PDF to JPG & PNG Converter

100% in-browser PDF to JPG and PNG converter. Convert PDF documents to high-resolution 300 DPI images, select page ranges, adjust quality, copy to clipboard, and batch download as ZIP with complete client-side privacy.

pdf-documents

Page 1 of 2 (18 total tools)

Show per page: