Simple tools for everyday tasks.
Practical utilities for work and study—no account required, ready when you need them.
Small tasks add up and steal time. ToolNest keeps friction low: no mandatory signup, quick access to the tool you need, and a broad mix of utilities—from text and spreadsheets to images, PDFs, and developer workflows—in one place.
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Many tools run in your browser. Each tool page explains what it does and how data is handled when possible.
We publish guides so pages add context beyond a bare directory of links.
Policies & site info
Split a large CSV file into multiple smaller CSV files by row count.
Format and validate JSON. Paste minified JSON, get pretty-printed output.
Upload image and compress it. Output smaller file.
Convert CSV data to JSON format. Paste CSV, get structured JSON.
Tools for editing, converting, and summarizing spreadsheets
Sum numbers from a spreadsheet column. Paste numbers, get the total.
Convert CSV to Markdown table format.
Convert CSV data into Excel (.xlsx) format.
Convert Excel files (.xlsx) into CSV format.
Split a large CSV file into multiple smaller CSV files by row count.
Merge multiple CSV files into one. Combine CSV data.
Format and conversion tools for JSON and developers
Convert CSV data to JSON format. Paste CSV, get structured JSON.
Compare two JSON objects and highlight differences.
Format and validate JSON. Paste minified JSON, get pretty-printed output.
Minify JSON to a single line. Remove whitespace and newlines.
Minify HTML. Remove comments, collapse whitespace.
Minify CSS. Remove comments and whitespace.
Tools for compressing, resizing, converting, and editing images
Crop images to a fixed aspect ratio (16:9, 4:3, 1:1, etc.) with center crop.
Add text watermark to images. Position, opacity, font size, and color options.
Upload image and compress it. Output smaller file.
Resize image width and height.
Compare two images side by side. For design and quality checks.
Convert images to pixel art style. For games and design.
Tools for merging, splitting, converting, and editing PDFs
Add text watermark to all pages of a PDF. Position, opacity, font size options.
Split a PDF into multiple pages.
Merge multiple PDF files into one.
Compress PDF files. Lossless, balanced, or max presets. 100% browser-side.
Convert PDF pages to images.
Convert uploaded images into a PDF.
Tools for editing, converting, and searching text
Remove duplicate lines from a list. Paste your list, get unique items.
Compare two texts and highlight differences. Side-by-side or unified view.
Find specified strings within text. Add multiple search strings and discover all occurrences.
Search and replace text. Find occurrences, then replace with new text.
Convert text to Leet speak and vice versa. a→4, e→3, i→1, o→0.
Replace {{variable}} placeholders in a template with values from a JSON object.
We publish who runs the site, privacy and advertising practices, and how to reach us. Bug reports and suggestions are welcome.