Are file converters private?
Yes for browser-based tools here. Files and pasted content are processed locally in JavaScript—they are not uploaded to EverydayTools servers.
Convert between CSV, JSON, XML, Excel, HTML, Markdown, and text formats in your browser. Your files stay on your device—nothing is uploaded to our servers.
Free CSV to Excel converter — upload or paste CSV data and convert it to an Excel (.xlsx) spreadsheet instantly. Supports custom delimiters and UTF-8 encoding. No signup.
Free CSV to JSON converter — paste or upload CSV and convert to structured JSON with headers as keys. Supports custom delimiters and nested output. No signup required.
Free Excel to CSV converter — upload any XLSX or XLS file and download a clean CSV instantly. Supports multiple sheets, custom delimiters, and UTF-8 encoding. No signup.
Free HTML to Markdown converter — paste HTML and get clean Markdown output for GitHub docs, blog posts, Notion pages, and static site generators. Preserves links and code blocks. No signup.
Free JSON to CSV converter — convert JSON arrays to CSV with automatic header row extraction. Download for Excel or Google Sheets. Handles nested objects. No signup.
Free JSON to XML converter — transform JSON objects and arrays into well-formed XML with pretty-print output. Supports attribute mapping. Perfect for SOAP APIs and legacy integrations.
Free PDF to text extractor — extract all text from any PDF instantly. Copy to clipboard or download as .txt. Browser-based, no upload to server, fully private. No signup.
Convert plain text or .txt files into a formatted PDF with custom font, font size, margins, and page size. Runs entirely in your browser — no upload, no signup, instant download.
Free XML to JSON converter — paste XML and instantly get clean, structured JSON output. Handles attributes, nested elements, and CDATA sections. Perfect for REST API migration. No signup.
Free file converters transform CSV, JSON, XML, Excel, HTML, Markdown, and text in your browser—CSV to JSON for APIs, JSON to CSV for spreadsheets, XML for legacy data. Processing runs locally; files are not uploaded to a server.
Pick a converter, paste or upload, and download in seconds.
No signup · Local processing · 100% free
Free online file converters transform CSV, JSON, XML, Excel, HTML, Markdown, and text in your browser—paste or upload locally with no server upload for most data conversions.
File converters bridge format mismatches in development, analytics, and content workflows. A spreadsheet export is CSV; your API expects JSON. A legacy ERP emits XML; your app consumes JSON. CMS HTML must become Markdown for docs or GitHub.
EverydayTools converters run in JavaScript in your browser. CSV, JSON, XML, HTML, and text are read into memory, transformed, and downloaded—without sending file contents to our servers for those tools.
Pick the converter for your pair (CSV↔JSON, XML↔JSON, Excel↔CSV, HTML→Markdown, text→PDF, PDF→text) from this hub, then copy or download the output.
CSV→JSON for APIs; Excel→CSV then CSV→JSON for spreadsheets; all local processing for sensitive exports.
Concise answers for common searches — definitions, steps, and comparisons.
Yes for browser-based tools here. Files and pasted content are processed locally in JavaScript—they are not uploaded to EverydayTools servers.
Excel to CSV first, then CSV to JSON—two focused steps with preview at each stage.
CSV is flat tabular data from spreadsheets. JSON supports nested objects and arrays for APIs and apps.
Select CSV↔JSON, XML↔JSON, Excel↔CSV, HTML→Markdown, text→PDF, or PDF→text from the grid.
Drop a file or paste raw content. Most tools accept keyboard paste for quick API payload fixes.
Output appears instantly—review headers, delimiters, or nesting before download.
Use the result in your app, spreadsheet, database import, or documentation repo.
Common real-world scenarios where this tool saves time.
Turn CSV exports or JSON API responses into the format your pipeline or test fixture expects.
Flatten JSON arrays to CSV for Excel or Sheets; reverse CSV to JSON for scripting.
Modernise XML invoices, catalogues, or config into JSON for microservices and REST APIs.
Convert CMS HTML to Markdown for static sites, wikis, and version-controlled documentation.
Package plain text as PDF or extract PDF text for editing without desktop suites.
Step-by-step chains that connect related tools for common tasks.
Parsers read text or binary into memory, apply format-specific rules (RFC 4180 CSV, JSON.parse, XML DOM), and emit downloadable blobs. No round-trip through a remote API for supported tools.
Match your source and target format.
| Task | Tool | Notes |
|---|---|---|
| Spreadsheet → API | CSV to JSON | First row = keys; auto delimiter detect |
| API → spreadsheet | JSON to CSV | Flattens object arrays to columns |
| Excel ↔ CSV | Excel to CSV / CSV to Excel | XLSX ↔ plain CSV |
| Legacy XML → JSON | XML to JSON | Attributes and repeated elements handled |
| JSON → XML | JSON to XML | For systems that still require XML |
| Web page → docs | HTML to Markdown | Headings, lists, links, code blocks |
| Notes → PDF | Text to PDF | Simple formatted PDF download |
| PDF → editable text | PDF to Text | Best on digital PDFs, not scans |
| Approach | Privacy | Speed | Best for |
|---|---|---|---|
| EverydayTools (local) | No upload for CSV/JSON/XML/text | No upload latency | Sensitive exports, dev workflows |
| Cloud convert sites | File sent to server | Queue + download | Obscure proprietary formats |
| Manual scripting | Local | Requires code | Custom transforms at scale |
European Excel exports often use semicolon (;) because comma is the decimal separator. US/UK exports use comma. TSV from databases uses tab. If preview shows one giant column or thousands of skinny columns, switch delimiter manually in CSV to JSON before converting.
In CSV to JSON, the first row becomes JSON property names. If your file has no header row, disable header mode or you will get keys like column1 from wrong rows. If headers are on row 2 because of a title line, delete the title row first.
CSV to JSON outputs an array of flat objects—one level of keys per column. Nested API shapes (user.address.city) need scripting, manual restructuring, or a source export that already includes JSON. Do not assume CSV will recreate hierarchy automatically.
This hub does not offer one-click XLSX → JSON. Export or convert with Excel to CSV first, then run CSV to JSON with delimiter and header checks at each step. Skipping the middle step is the most common reason spreadsheet-to-API pipelines fail silently.
JSON requires double-quoted keys and strings, no trailing commas, and no comments. {name: 'alice'} is valid JS but invalid JSON. Validate with JSON Validator, fix syntax, then format or convert.
Customer lists, payroll CSVs, and API payloads with tokens should use browser-local tools on this site when possible. Cloud upload services process files on remote servers. Prefer paste/upload here for dev-sized files that stay in memory only on your device.
PDF to Text extracts embedded text from digital PDFs. Scanned pages are images—output will be empty or garbage without OCR software. For phone photos of documents, use a dedicated OCR tool first.
Complex CMS HTML may lose layout-specific spans, custom classes, or malformed tables. After HTML to Markdown, spot-check headings, fenced code blocks, and pipe tables before committing to your docs repo.
JSON to CSV uses keys from the first object as columns. If later rows have extra fields, they may be dropped or misaligned. Normalize objects to the same schema first, or filter to a consistent array of records.
Encode query values with encodeURIComponent, not the full URL with slashes encoded. If you already have %20 in a string, encoding again produces %2520. Decode first when unsure, then encode only the parameter values.
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Yes. Every converter is free with no account, subscription, or paywalled row limits on this hub.
No. Conversion runs in your browser with JavaScript. Content is processed locally and not sent to EverydayTools servers.
Yes. Open CSV to JSON, paste or upload, and copy the JSON array—headers, quotes, and delimiters are handled automatically.
CSV is flat tabular text from spreadsheets. JSON supports nested objects and arrays for APIs and applications.
Use Excel to CSV, then CSV to JSON if needed. CSV to Excel and Excel to CSV handle XLSX directly.
Paste or upload XML in XML to JSON. Elements become objects; attributes and repeated tags map to properties and arrays.
Semantic HTML becomes Markdown headings, lists, links, and fenced code—presentational markup is stripped.
Yes. Text to PDF formats plain text into a downloadable PDF with adjustable layout options.
PDF to Text extracts readable text from digital PDFs. Scanned image PDFs may need OCR elsewhere.
Flatten API JSON arrays into spreadsheet columns—keys from the first object become headers.
Yes in modern mobile browsers—upload, paste, convert, and download all work on iOS and Android.
File converters on this hub process data locally in your browser for supported formats—files are not uploaded to EverydayTools servers.
CSV follows RFC 4180 quoting rules; JSON and XML parsers use standard browser APIs—always verify edge schemas before production imports.
Complex enterprise XML or scanned PDFs may need manual review or specialised software beyond browser conversion.
More free tools for the same workflow.
Free JSON to CSV converter — convert JSON arrays to CSV with automatic header row extraction. Download for Excel or Google Sheets. Handles nested objects. No signup.
Free XML to JSON converter — paste XML and instantly get clean, structured JSON output. Handles attributes, nested elements, and CDATA sections. Perfect for REST API migration. No signup.
Free Excel to CSV converter — upload any XLSX or XLS file and download a clean CSV instantly. Supports multiple sheets, custom delimiters, and UTF-8 encoding. No signup.
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Reviewed by EverydayTools Editorial Team on 2026-05-20.