File Converter Tools
Free file converter — convert video, audio, image, data, and document formats instantly. Nothing uploaded, 100% browser-based.
About File Converter Tools
59 file converters — Markdown to HTML, JSON to CSV, EPUB to PDF, images to PDF, and dozens more. Every conversion happens locally in your browser; documents and data are never uploaded.
Image Format Converter
Convert one browser-decodable image to PNG, JPG, or WebP — the only outputs canvas can encode. HEIC/SVG/JXL/TIFF and other exotic targets fail honestly instead of pretending. Nothing is uploaded; every conversion runs in your browser.
Bulk Image Format Converter
Convert image batches to JPG, PNG, WebP, AVIF, GIF, BMP, ICO, or SVG outputs (JPEG/PNG/WebP/AVIF/HEIC/HEIF/GIF/BMP/ICO/SVG inputs; HEIC via heic2any, SVG rasterized at intrinsic size or 1024px fallback) with a quality slider (10–100, default 80; applies to lossy encodes). Pair pages (?from/?to) preset the output. Flat ZIP renamed per file — local, 5-file guest batches, 25 signed-in, 500 Pro.
GIF to WebP/WebM
Convert animated GIFs to modern WebP or WebM formats with transparency support — ~10x smaller files. Shrink GIFs dramatically for modern web use — local conversion, unlimited saves.
PNG to SVG
Turn a PNG (or JPG/WebP) into SVG two ways: Embedded Vector Wrapper (full-size base64 image in an SVG shell — scales without re-saving, not true vectors) or Silhouette Path Trace (black-only 1px-rect tracing of dark pixels on a capped 250px thumbnail). Downloads as traced_vector.svg — local Canvas work, no uploads.
GIF to APNG
Upgrade one GIF to APNG via FFmpeg apng codec at locked 10fps and source dimensions (Lanczos) — 24-bit color plus 8-bit alpha, no size/quality settings. Result panel shows GIF vs APNG KB with ±% change; saves as <name>.png. Modernize sticker packs — local FFmpeg work, unlimited saves.
APNG to GIF
Convert one APNG to GIF in your browser with FFmpeg WASM — frame rate picker 10/15/24/30fps (default 10), output width 320/480/640/800px (default 320, height auto), palettegen/paletteuse optimize, loop-forever output. Photos never leave your device.
Bulk HEIC to JPG
Convert iPhone HEIC/HEIF photos to universal JPGs at fixed quality 0.92 via heic2any (loaded on demand per batch). Filenames carry over with .jpg extensions — local conversion, 2 free batches a day.
RAW Image Converter
Queue RAW files (CR2, NEF, ARW, DNG, RAF, ORF, RW2, PEF, SRW) — each gets a live browser decode test with a green/red dot; supported ones convert to JPG, PNG, or WebP at quality 10–100% (default 92, hidden for PNG), one by one or all at once. Canvas re-encoding drops metadata — local processing, unlimited saves.
PSD to JPG/PNG
Convert one PSD to JPG, PNG, or WebP in your browser via ag-psd — flattened composite (or first visible layer fallback) with a dimensions, color-mode, and layer-count readout. JPG flattens transparency onto white; quality 10–100 (default 90) for JPG/WebP. Photos never leave your device.
Bulk SVG to PNG
Rasterize SVG vectors to crisp PNGs at 1x, 2x (default), 3x, or 4x scale — base size read from the SVG width/height attributes (100px fallback) — with filename preservation (.svg becomes .png). Developers ship full icon sets in four runs — local Canvas work, 2 free batches a day.
Batch Image Converter
Convert a batch of images to one output — JPG, PNG, or WebP — at quality 10–100% (default 80%), capped at 4096px longest side, then download everything as a ZIP. Files that fail conversion fall back to their originals inside the same archive — local library work.
HTML to Image Converter
Renders pasted HTML and CSS markup (no file upload, no URL screenshots) into downloadable PNG, JPEG (fixed quality 0.95), or SVG via the html-to-image library. Preview is DOMPurify-sanitized — free to start with no signup.
Audio Format Converter
Convert between MP3, WAV, FLAC, OGG, M4A, and AAC audio formats. Pick any input and output format — your files never leave your device.
Video Format Converter
Convert between MKV, MP4, MOV, WebM, and AVI video formats. Pick any input and output format from the dropdown — your files never leave your device.
GIF to MP4 Converter
Convert GIF animations to MP4 videos for drastically smaller file sizes. Content creators use this to shrink animated GIFs by up to 90% for social media, Discord, and web pages — all in your browser, nothing uploaded.
MP4 to MP3 Converter
Extracts the audio track from MP4 video files and saves it as a standalone MP3 file. All processing runs locally in your browser with FFmpeg WASM — nothing is uploaded.
MOV to MP3 Converter
Extract the audio track from QuickTime MOV files and convert it to MP3 format. All processing runs locally in your browser with FFmpeg WASM — nothing is uploaded.
WebM to MP3 Converter
Extract the audio track from WebM video files and convert it to MP3 format. All processing runs locally in your browser with FFmpeg WASM — nothing is uploaded.
EPUB to PDF
Converts EPUB files to PDF format — e-readers, mobile devices, and accessible digital books to document sharing, printing, and archival with consistent formatting. All conversion happens locally in your browser with no file size limits.
MOBI Converter
Convert MOBI (Kindle) e-book files to PDF or EPUB, and create MOBI files from PDF. Perfect for Kindle users who need to read books on other devices or share with non-Kindle readers.
ODT/RTF to PDF
Convert OpenDocument (ODT) and Rich Text Format (RTF) files to PDF. Preserves basic formatting like bold, italic, headers, and paragraphs. Perfect for LibreOffice and WordPad users.
CBZ to PDF
Convert comic book archives to PDF. Page ranges, double-page spreads, multiple sizes. Files are converted locally in your browser — nothing is uploaded.
Bulk E-Book Converter
Convert EPUB ebooks to paginated PDF, or PDF ebooks back to EPUB — real local text extraction. MOBI/Kindle files are rejected (repack them to EPUB in Calibre first); images-only books need OCR.
Bulk Markdown to PDF/HTML
Convert a single Markdown document to styled HTML or plain-text PDF with three built-in themes. One document at a time — local Marked + jsPDF, free, sign in to start.
PDF to TXT
Extract plain text from any PDF — articles, transcripts, documentation. Strip a 100-page manual to editable text — local extraction, free, no signup.
PDF to PNG
Convert PDF images to PNG format in your browser. Documents stay on your device — editing and conversion run locally in your browser.
PDF to TIFF
Convert PDF pages to lossless TIFF images for print, fax, and archival workflows. Produce 300 DPI press-ready files — local rendering, unlimited saves.
PDF to Markdown
Extracts all text content from PDF files and converts it to clean Markdown format with proper headings, lists, and structure. Documents stay on your device — editing and conversion run locally in your browser.
Markdown to PDF
Convert Markdown to beautifully formatted PDF. Supports headings, bold, italic, code blocks, and lists. Documents stay on your device — editing and conversion run locally in your browser.
URL to PDF
Convert any webpage to PDF in your browser. Save articles, receipts, and web pages as PDF documents. No signup or account required.
EML to PDF
Converts EML files to PDF format — email backup, archival, and forensic analysis to document sharing, printing, and archival with consistent formatting. All conversion happens locally in your browser with no file size limits.
TIFF to PDF
Convert TIFF images to PDF format in your browser. Documents stay on your device — editing and conversion run locally in your browser.
Bulk Image to PDF
Bind hundreds of JPG, PNG, or WebP images into one multi-page PDF with page size, orientation, and fit control. Agents compile 80 property photos into a brochure — local jsPDF work, 2 free batches a day.
Document Converter
Organize documents across PDF, Word, Excel, PowerPoint, Image, HTML, EPUB, and HEIC filename targets. Files queue locally with a 150MB per-file intake cap — your files never leave your device.
Data Format Converter
Convert data between JSON, CSV, XML, YAML, and TSV with structure preserved. Migrate configs across stacks without rewriting — local PapaParse/xml2js/yaml parsing, free, no signup.
CSV Output Tools
Format and validate CSV files — consistent delimiters, quoting, and line endings. Fix files Excel mangles on export — local processing, free, no signup.
Import to CSV
Convert pasted tables, lists, and structured text into clean CSV rows. Turn copied web tables into spreadsheet data — local parsing, free, no signup.
XLSX ↔ CSV Converter
Convert between XLSX workbooks and CSV files preserving sheets and encoding. Move data across Excel and pipelines — local SheetJS work, unlimited saves.
JSON → Toon Converter
Convert JSON objects into a human-readable Toon format using → arrows instead of colons. Files are converted locally in your browser — nothing is uploaded.
YAML ↔ JSON Converter
Bidirectional YAML to JSON and JSON to YAML conversion with auto-format detection and real-time preview. Perfect for configuration files, API payloads, and data migration.
Archive Converter
Create ZIP archives from your files right in your browser. Bundle loose files into one archive.zip with DEFLATE compression — local JSZip work, unlimited saves.
Markdown Tools
Markdown toolbox with four converting tabs — Markdown to HTML source, plain text to Markdown, HTML to Markdown, and Markdown to plain text. Own every .md workflow in one tab — local processing, free, no signup.
Roman Numeral Converter
Convert between Roman numerals and numbers both ways — chapters, clocks, movie credits. Decode MCMXCIV as 1994 instantly — local math, free, no signup.
SCSS to CSS Converter
Convert SCSS variables and nesting to plain CSS. Files are converted locally in your browser — nothing is uploaded. Variables and nesting compile cleanly — free, local, no signup.
Tailwind to CSS Converter
Convert Tailwind utility classes to plain CSS. Files are converted locally in your browser — nothing is uploaded. Utility classes expand to vanilla CSS for non-Tailwind projects — free, local, no signup.
HTML to Text Converter
Strip HTML to clean plain text for emails, docs, and analysis. Extract article text without tags — local conversion, free, no signup.
Bulk CSV/Excel to JSON
Turn messy client CSV and Excel sheets into clean JSON arrays or keyed objects with column mapping. Developers convert 50 exports without hand-editing — local SheetJS work, 2 free batches a day.
CSV to SQLite Web Terminal
Convert CSV files into queryable SQLite databases in your browser. Turn 100k-row exports into SELECT-able tables — local sql.js work, unlimited saves.
SQL to CSV Converter
Parse SQL INSERT statements back into CSV rows — quoted strings unescaped, NULLs emptied, multi-statement appends. Round-trip database dumps back to spreadsheets — local parsing, free, no signup.
Text ↔ Binary Converter
Convert between plain text and binary in both directions — encode text into its base-2 representation or decode binary strings back to readable text, byte by byte. Files are converted locally in your browser — nothing is uploaded.
Number Base Converter
Convert numbers between binary, octal, decimal, and hex with bitwise views. Read 0xFF as 255 instantly — local math, free, no signup.
Markdown to Slack Converter
Convert Markdown to Slack mrkdwn — bold, italics, links, and code that actually render. Post formatted updates that work — local conversion, free, no signup.
Image to Base64
Encode images to Base64 data URIs for CSS embedding and API payloads. Inline a logo without extra requests — local encoding, free, no signup.
SVG to Base64 Converter
Encode SVGs to Base64 data URIs for CSS embedding — icons without requests. Inline a logo in one line — local encoding, free, no signup.
Morse Code Translator
Translate text to Morse code and decode Morse back — with timing-accurate playback. Learn SOS (···---···) properly — local processing, free, no signup.
NATO Phonetic Converter
Bidirectional NATO phonetic alphabet converter. Convert text to NATO words (Alpha, Bravo, Charlie) and back. Perfect for radio communication, spelling clarification, and aviation.
Braille Translator
Translate text to Braille Unicode patterns and back for accessibility work. Check ⠓⠑⠇⠇⠕ renders correctly — local conversion, free, no signup.
Data Type Converter
Convert values between string, number, boolean, array, and object types with validation. Fix API type mismatches fast — local conversion, free, no signup.
JSON to XML
Converts JSON files to XML format — APIs, configuration files, and data exchange between web services to enterprise systems, SOAP APIs, document formatting, and legacy integration pipelines.
More from Toolzum
✓ Format pairs convert locally — files never leave the tab.
Works fully offline after first load — nothing leaves your browser.
Pro raises uploads to as much as 2 GB — free tools stay free.
File Converter FAQs
How do I convert CSV to JSON?
Paste or drop the CSV — the first row becomes object keys by default. Nested fields, custom delimiters, and arrays are configurable before you copy or download the result.
Can I convert Markdown to HTML and back?
Yes, both directions. Markdown to HTML renders tables, code blocks, and task lists; HTML to Markdown strips tags back to clean text you can edit anywhere.
How do number-base conversions handle large values?
Binary, octal, decimal, and hex convert with arbitrary precision — long bit strings and 64-bit values stay exact, unlike spreadsheet functions that round past 15 digits.
How do I combine images into one PDF?
Add JPG or PNG files in order, set page size and margins, and export — each image becomes one page. Reorder by dragging before converting.