Free online tools for text, JSON and everyday data tasks
ToolboxApp gives you 20+ free, instant tools for the tasks that come up every day: removing line breaks from PDF text, formatting and repairing JSON, extracting emails from raw content, encoding and decoding Base64 strings, calculating percentages and generating QR codes or barcodes. Every tool runs entirely in your browser — nothing is uploaded, stored or shared.
Runs locally · No data sent to server · Fast and simple · No signup required
Text Tools
Clean, repair and normalize copied text from any source.
Paste text copied from a PDF or email and get clean, continuous paragraphs — hard line breaks removed, paragraph spacing preserved.
Fix Text from PDFRepair hyphenated words split across lines and broken spacing from copied PDF text — paste and fix in one click.
Clean Text for AIRemove smart quotes, broken line breaks, non-breaking spaces and tab characters from copied text before pasting into ChatGPT, Claude or Gemini.
Remove Weird SpacingCollapse double spaces, remove tab characters and strip trailing whitespace from any text — in one click.
Word CounterCount words, characters, sentences and paragraphs in any text instantly — with and without spaces.
Text Case ConverterConvert text to UPPER CASE, lower case, Title Case or Sentence case — choose the mode and click Run.
Data Tools
Format, repair and convert structured data like JSON and CSV.
Paste minified or compact JSON and get it back formatted with proper indentation — readable, debuggable and validated.
Fix Invalid JSONAutomatically repair malformed JSON with unquoted keys, single quotes, trailing commas and Python-style literals.
JSON to CSVConvert a JSON array of objects into CSV format — ready to open in Excel, import into a database or share as a spreadsheet.
CSV to JSONConvert CSV data with a header row into a structured JSON array of objects — ready for APIs, web apps or further processing.
Compare JSONPaste two JSON objects and instantly see the differences — key order is ignored, only real data changes are highlighted.
Encoding Tools
Encode and decode strings safely and quickly.
Extraction Tools
Pull useful data such as emails and URLs from raw text.
Generators
Create QR codes and barcodes directly in your browser.
Generate QR codes from any URL or text and download as PNG or SVG — free, no account, no watermark.
Barcode GeneratorGenerate CODE128 barcodes from any text or number and download as PNG or SVG — free, no account, no watermark.
Lorem Ipsum GeneratorGenerate standard lorem ipsum placeholder text by paragraph or word count — instantly, with no server requests.
Calculators
Fast, accurate calculators for everyday tasks.
Why use ToolboxApp?
Runs locally — no data sent to any server
All processing happens in your browser using JavaScript. Your text, JSON data, email lists and encoded strings are never sent to a server, never stored in a database and never shared with any third party. You can use these tools on confidential documents, client data and sensitive files with no privacy risk.
No account, no signup, no limits
There is no registration, no email confirmation and no subscription. Open a tool, paste your input, click Run and copy the result. Every tool is free with no usage limits, no premium tiers and no features locked behind a paywall.
Built for real, recurring problems
Each tool targets a specific, practical problem — the kind that comes up repeatedly in writing, development, content work and data handling. Broken PDF text, minified JSON, embedded email addresses, encoding tasks that need a quick tool rather than a full script. The tools handle edge cases correctly.
Fast and simple by design
No bloated interfaces, no unnecessary steps. Paste input, click Run, copy output. Tools load instantly because there is no server round-trip. The focus is on completing the task in as few steps as possible.
Popular tools
Remove Line Breaks
When you copy text from a PDF, email or Word document, hard line breaks follow the original page layout rather than natural paragraph flow. This tool merges broken lines into readable paragraphs while keeping intentional paragraph breaks intact. Used daily by writers, analysts and anyone who copies from PDFs.
JSON Formatter
Paste minified or compact JSON and get it back formatted with proper indentation — making it readable, editable and easy to debug. The formatter also validates the JSON as part of the process and reports any syntax errors clearly.
Extract Emails from Text
Pull every email address out of any block of text, HTML, CSV export or raw data dump. The extractor finds all valid addresses, deduplicates the list and returns one address per line, ready to copy into any tool or list.
Base64 Encode / Decode
Encode any text string to Base64 or decode a Base64 string back to plain text, all in your browser. Useful for encoding API tokens, reading encoded data from JWTs, working with email attachments and debugging encoded payloads.
Frequently asked questions
Is ToolboxApp really free?
Yes. All tools are completely free with no usage limits, no signup and no hidden fees. The site is supported by display advertising.
Does ToolboxApp upload my data to a server?
No. Every tool processes your input locally in your browser using JavaScript. No data is ever uploaded, stored or shared. Your content stays entirely on your device.
Do the tools work on mobile?
Yes. All tools work on modern mobile browsers. Tools that require long text input are more comfortable on desktop, but every tool is fully accessible on a phone or tablet.
Which tools are most popular?
The most-used tools are Remove Line Breaks, JSON Formatter, Extract Emails and Base64 Encode / Decode. These cover the most common recurring data and text problems people search for tools to solve.
How do I suggest a new tool?
Send your idea to toolbox_team@outlook.com and we will consider it for a future update.