Developer Tools

Inspect, integrity-test, and selectively extract ZIP, 7Z, TAR, compressed TAR, GZ, BZ2, XZ, and supported RAR archives.

Inspect supported optical, filesystem, and virtual-disk images without mounting them, then extract selected ordinary files.

Open ZIP archives locally, inspect contents, search files and download selected entries without uploading.

Convert non-encrypted 7z archives into standard ZIP files on Convertr servers.

Export full-resolution composited PNG frames from GIF, APNG, or animated WebP with a timing JSON sidecar.

Edit SRT and WebVTT cues, shift timings, validate order, and export captions locally.

Convert verified ASS, SSA, SRT, and WebVTT tracks with an explicit compatibility-loss report.

Export verified ASS or SSA dialogue as portable SRT captions.

Convert SRT cues into a conservative ASS v4+ subtitle profile.

Inspect ASS or SSA styles, events, timing, attachments, and validation warnings.

Convert uploaded M3U, M3U8, PLS, and XSPF playlist files without downloading or converting the referenced media.

Edit ID3 tags and album artwork in your browser without uploading audio files.

Download public Loom recordings as MP4 files when you have permission to save them.

Inspect font outlines, Unicode coverage, variation axes, tables, embedding bits, color data, and validation warnings.

Compare project text or Unicode ranges with the code points supplied by a font.

Create a deterministic project-specific subset with conservative glyph and layout closure.

Pin every advertised variation axis and export a validated static font instance.

Inspect and convert verified STL, OBJ, PLY, glTF 2.0, and GLB pairs with contained resources and machine-readable fidelity reports.

Bundle glTF resources or create a self-contained GLB without fetching external URIs.

Paste a public YouTube URL or video ID to find and export a current, best-effort related-video list.

Extract public YouTube tags, keywords, hashtags, and basic video metadata when available.

Extract available YouTube captions and transcripts in plain text, SRT, or VTT. No video download.

Fetch public YouTube comments, filter giveaway entries, and pick random winners with a visible seed.

Browse current YouTube trending videos by country, language, and category.

Rewrite local playlist path separators or replace one literal local base prefix with another.

Format, validate, minify and sort JSON locally in your browser.

Inspect HTTP Archive requests, statuses, timings, transfer sizes, caching and compression without fetching recorded URLs.

Remove session secrets, query values, bodies, server addresses and unsafe extensions before sharing a HAR.

Export every validated HAR request as a fixed spreadsheet-safe UTF-8 CSV summary.

Validate JSON against a schema online with Draft-07, 2019-09 and 2020-12 support in your browser.

Query, evaluate and inspect JSON documents using JSONPath expressions locally in your browser.

Infer TypeScript interfaces or type aliases from pasted JSON locally in your browser.

Convert pasted JSON into XML locally with root and array item controls.

Convert XML into JSON locally with clear attribute, text and array conventions.

Convert BibTeX bibliography files (.bib) to RIS format locally in your browser.

Convert RIS reference lists (.ris) to LaTeX-compatible BibTeX format locally in your browser.

Flatten JSON arrays or objects into spreadsheet-ready CSV locally in your browser.

Search a bounded page of current Australian buy, rent, or sold listings and export minimal CSV or JSON data.

Validate CSV rows, preview columns and format delimited data locally in your browser.

Check CSV delimiter consistency, ragged rows, duplicate headers and import specs locally in your browser.

Convert CSV, TSV and Excel spreadsheet data locally in your browser.

Convert CSV and TSV files into XLSX workbooks with delimiter controls and preview.

Convert Excel XLSX, XLS, and ODS spreadsheets into CSV files.

Convert calendar .ics and .ical exports into normalized CSV event rows.

Convert NetCDF → CSV

Convert contained Shapefile ZIP, GeoPackage, FlatGeobuf, and GeoJSON vector datasets.

Inspect DICOM image properties and export full-resolution pixel frames to lossless PNG or TIFF.

Inspect general HDF5 files and extract selected datasets to CSV or JSONL.

Inspect astronomy HDUs and export image planes or scientific tables.

Inspect SAS, SPSS, and Stata datasets and export complete CSV or JSONL with metadata.

Inspect SQLite tables, views, columns, indexes and foreign keys, then export one selection to complete CSV, JSONL or JSON.

Inspect email and mailbox files, export attachments or original messages, and stream complete metadata to CSV or JSONL.

Inspect private bank, card, and investment statement structure, then export exact transaction strings to CSV or JSONL.

Inspect MKV, MKA, MKS, and WebM tracks, then extract selected native streams, metadata, and safe attachments without transcoding.

Flatten JSON into CSV or convert CSV rows into JSON locally in your browser.

Format, validate and minify XML locally in your browser.

Format SQL queries for MySQL, PostgreSQL, SQL Server, SQLite, BigQuery, Snowflake and Redshift locally in your browser.

Search current news metadata and export a bounded result set as UTF-8 CSV or JSON.

Search public patent results with focused filters and export a bounded result set as CSV or JSON.

Convert epoch timestamps to readable UTC and local dates.

Build, validate and explain 5-field Unix cron schedules with next run previews.

Convert length, weight, temperature, area, volume, speed, data and time units locally in your browser.

Test JavaScript regular expressions against sample text with live matches.

Convert text between uppercase, lowercase, title case, snake_case, kebab-case, camelCase and more.

Encode and decode URLs, query strings and URL components.

Turn titles, product names and bulk text rows into clean SEO-friendly URL slugs.

Encode HTML-sensitive characters and decode named, decimal, and hexadecimal HTML entities locally in your browser.

Compare text online, review code snippets, and inspect line-level differences locally in your browser.

Inspect packet capture metadata, protocols, endpoints, conversations, DNS and TCP summaries, then export fixed packet summaries to CSV or JSONL.

Generate SHA-256, SHA-1 and MD5 checksums from text or local files.

Create UUID v4 values and copy them in common developer formats.

Generate secure random passwords and memorable passphrases locally in your browser.

Check public A, AAAA, CNAME, MX, TXT, NS, CAA, SOA, and SRV DNS records for a domain.

Check whether a domain has sane DMARC and SPF TXT records before sending email.

Inspect status codes, redirects, response headers, cache headers, security headers, content type, and compression.

Decode JSON Web Token headers and payloads locally in your browser, including exp, nbf and iat timing claims.

Build clean GA4, ad, email, social, partner and QR tracking URLs locally in your browser.

Build robots.txt rules, validate directives, and export a clean file for search crawlers.

Create a valid sitemap.xml file from a list of URLs locally in your browser with changefreq, priority, and lastmod controls.

Test Open Graph meta tags, X/Twitter card metadata, and preview social share snippets for any website.

Convert Markdown syntax into HTML locally in your browser with a live preview.

Convert pasted HTML snippets into clean Markdown locally in your browser.

Compress pasted HTML snippets or local .html files with conservative browser-side options.

Compile nested Sass/SCSS code snippets to standard CSS directly in your browser.

Minify pasted CSS or local .css files with conservative browser-side compression.

Create linear, radial, and conic CSS gradients in your browser.

Compress pasted JavaScript or local .js files with Terser running locally in your browser.

Check DRM-free EPUB 2 and EPUB 3 files with EPUBCheck and download JSON or text reports.

Apply deterministic container-level EPUB repairs with before-and-after conformance counts.

Create Code 128, EAN-13 and UPC-A barcodes as PNG or SVG files.

Read barcodes from images, screenshots, labels, receipts, or your camera without uploading.

Create QR codes for URLs, text, email, phone, Wi-Fi and contacts as PNG or SVG files.

Read QR codes from images, screenshots, paste, drag and drop, or your camera without uploading.

Pick exact HEX, RGB and HSL colors from uploaded or pasted images locally.

Create data URIs, raw Base64 strings, HTML img tags and CSS snippets from local images.

Render README files, notes, changelogs, and Markdown snippets as selectable-text PDFs.

Convert supported office documents, ebooks, CSV, and text-based PDFs into clean Markdown.

Inspect self-contained DjVu pages, hidden text, annotations, thumbnails, and image layers.

Recover an existing DjVu OCR layer as UTF-8 text or sanitized positional XML.

Render validated selected DjVu pages at full native resolution as PNG or TIFF.

Extract headings, lists, tables, links, and footnotes from DOC, DOCX, ODT, and RTF documents.

Convert selectable PDF text and detected document structure into editable Markdown.

Turn presentation text, lists, tables, links, and speaker notes into Markdown.

Convert Excel, OpenDocument spreadsheet, and CSV data into Markdown tables.

Render pasted HTML or uploaded .html files into downloadable PDFs with local headless Chromium.

Create favicon.ico, PNG app icons and manifest snippets locally from an image or text initials.

Create a transparent multi-size favicon.ico file from a WebP logo locally in your browser.

Rasterize SVG markup or files into transparent or background PNG output locally.

Evaluate the contrast ratio of text and background colors locally against WCAG AA and AAA standards.

Search hotels and vacation rentals with bounded price, rating, amenity, cancellation, sustainability, and property filters.